Scientific phenomena named after people

This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym.__NOTOC__

A

* Abderhalden ninhydrin reaction — Emil Abderhalden
* Abney effect, Abney's law of additivity — William de Wiveleslie Abney
* Abrikosov lattice — Alexei Alexeyevich Abrikosov
* Aharonov-Bohm effect — Yakir Aharonov and David Bohm
* Albert effect — ? Albert
* Alfvén number (a.k.a. Kármán number, magnetic Mach number) — Hannes Olof Gösta Alfvén
* Alfvén speed, wave — Hannes Olof Gösta Alfvén
* Allais effect — Maurice Allais
* Allee effect — Warder Clyde Allee
* Allinger's force field — Norman Allinger
* Ampère's law — André-Marie Ampère
* Anderson-Higgs mechanism (a.k.a. Higgs mechanism) — Peter Higgs and Philip Warren Anderson
* Anderson-Darling test — Theodore W. Anderson, Jr. and Donald A. Darling
* Andreev reflection — Alexander F. Andreev
* Andy's rule — André R. Wyss
* Apgar score — Virginia Apgar
* Arago phenomenon (a.k.a. Rotatory magnetism), spot — Dominique François Jean Arago
* Arbuzov-Michaelis reaction — Aleksandr Erminingeldovich Arbuzov and August Karl Arnold Michaelis
* Archimedean spiral, Archimedes number — Archimedes
* Argand diagram — Jean Robert Argand
* Argunov-Cassegrain telescope — P. P. Argunov and Laurent Cassegrain
* Aristotle's lantern — Aristotle
* Armstrong oscillator — Edwin Armstrong
* Arndt-Eistert synthesis — Fritz Arndt and Bernd Eistert
* Arndt-Schulz law/principle/rule — Rudolf Arndt and Hugo Paul Friedrich Schulz
* Arrhenius equation, number — Svante August Arrhenius
* Ashkin-Teller model (a.k.a. Potts model) — Julius Ashkin and Edward Teller
* Asinger reaction — Friedrich Asinger
* Auger effect, electron — Pierre Victor Auger
* Autler-Townes effect (a.k.a. Dynamical Stark splitting) — Stanley H. Autler and Charles H. Townes
* Auwers synthesis — Karl von Auwers
* Avogadro's law, number — Count Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e Cerreto

B

*Baeyer-Drewson indigo synthesis — Johann Friedrich Wilhelm Adolf von Baeyer and Viggo Drewsen
* Baeyer-Villiger oxidation and Baeyer-Villiger rearrangement — Johann Friedrich Wilhelm Adolf von Baeyer and Victor Villiger
* Bagnold number — Ralph Alger Bagnold
* Baily's beads — Francis Baily
* Baker-Nathan effect — John William Baker and Wilfred S. Nathan
* Bakerian mimicry — Herbert G. Baker
* Balmer line, series — Johann Jakob Balmer
* Bamberger rearrangement — Eugen Bamberger
* Bamford-Stevens reaction — William Randall Bamford and Thomas Stevens Stevens
* Barbier-Wieland reaction — François Antoine Phillipe Barbier and Heinrich Otto Wieland
* Bardeen vacuum — James Maxwell Bardeen
* Barkhausen effect — Heinrich Barkhausen
* Barnett effect — Samuel Jackson Barnett
* Barnett-Monstein effect – Samuel Jackson Barnett and Christian Monstein
* Barnum effect (a.k.a. Forer effect) — Phineas Taylor Barnum (and Bertram R. Forer)
* Barro-Ricardo equivalence — Robert Barro and David Ricardo
* Bartlett-Condon-Schneider reaction — Paul Doughty Bartlett, Francis Edward Condon, and Abraham Schneider
* Barton reaction — Sir Derek Harold Richard Barton
* Barton-McCombie reaction — Sir Derek Harold Richard Barton and Stuart W. McCombie
* Baskerville effect — the fictional Charles Baskerville of the novel "The Hound of the Baskervilles"
* Batesian mimicry — Henry Walter Bates
* Båth's law — Markus Båth
* Bayes' theorem — Rev. Thomas Bayes
* Baylis-Hillman reaction — Anthony B. Baylis and Melville E. D. Hillman
* Bayliss effect — William M. Bayliss
* BCS superconduction theory — John Bardeen, Leon Cooper, and Robert Schrieffer
* Beaufort scale (Beaufort wind force scale) — Sir Francis Beaufort
* Beckmann rearrangement — Ernst Otto Beckmann
* Becquerel effect — Henri Becquerel
* Beer's law (a.k.a. Beer-Lambert law or Beer-Lambert-Bouguer law) — August Beer (and Johann Heinrich Lambert and Pierre Bouguer)
* Beilstein's test — Friedrich Konrad Beilstein
* Bejan number — Adrian Bejan
* Bekenstein bound — Jacob Bekenstein
* Bell's inequality — John Stewart Bell
* Bell number — Eric Temple Bell
* Belousov-Zhabotinskii reaction — Boris Pavlovich Belousov and Anatol Markovich Zhabotinskii
* Bénard cell — Henri Bénard
* Bénard-Marangoni cell/convection (a.k.a. Marangoni convection) — Henri Bénard and Carlo Marangoni
* Benedicks effect — Manson Benedicks
* Benedict's test — Stanley Rossiter Benedict
* Benford's law — Frank Albert Benford, Jr.
* Benioff zone — see Wadati-Benioff zone, below
* Bennett pinch — Willard Harrison Bennett
* Benkeser reduction — Robert Anthony Benkeser
* Berezinsky–Kosterlitz–Thouless transition — Veniamin L. Berezinsky, John M. Kosterlitz, and David J. Thouless
* Bergman cyclization — Robert George Bergman
* Bergmann's rule — Christian Bergmann
* Bergmann-Zervas carbobenzoxy method — Max Bergmann and Leonidas Zervas
* Bernoulli effect, Bernoulli's equation, principle — Daniel Bernoulli
* Berry's phase — Michael V. Berry
* Betz limit — Albert Betz
* Bezold-Brücke effect (a.k.a. von Bezold spreading effect) — Johann Friedrich Wilhelm von Bezold and Ernst Wilhelm von Brücke
* Biefeld-Brown effect — Paul Alfred Biefeld and Thomas Townsend Brown
* Biginelli reaction — Pietro Biginelli
* Bingham number — Eugene C. Bingham
* Biot number — Jean-Baptiste Biot
* Biot-Savart law — Jean-Baptiste Biot and Félix Savart
* Birch reduction — Arthur John Birch
* Birge-Hopfield bands — see Lyman-Birge-Hopfield bands, below
* Birkeland currents — Kristian Birkeland
* Birman-Williams theorem — Joan Sylvia Lyttle Birman and Robert F. Williams
* Bischler-Napieralski synthesis — August Bischler and Bernard Napieralski
* Black's law (a. k. a. Black's equation) for electromigration — James R. Black (d. 2004) of Motorola
* Blake number — Frank C. Blake (1892-1926) US chemist
* Blazhko effect — Sergei Blazhko
* Bloch wave — Felix Bloch
* Bodenstein number — probably Max Bodenstein (1871 — 1942)
* Bohm sheath criterion — David Bohm
* Bohr effect — Christian Bohr
* Bohr magneton, model, radius — Neils Bohr
* Boltzmann constant — Ludwig Boltzmann
* Boltzmann number (a.k.a. Thring number) — Ludwig Boltzmann (or ? Thring)
* Bond number — ? Bond
* Borch reduction — Richard Frederic Borch
* Borel algebra, measure, set, space, summation, Borel's lemma, paradox — Félix Édouard Justin Émile Borel
* Borel-Cantelli lemma — Félix Édouard Justin Émile Borel and Francesco Paolo Cantelli
* Borel-Carathéodory theorem — Félix Édouard Justin Émile Borel and Constantin Carathéodory
* Bormuth index — John R. Bormuth
* Born-Haber cycle — Max Born and Fritz Haber
* Born-Oppenheimer approximation — Max Born and Robert Oppenheimer
* Borodin-Hunsdiecker reaction — Aleksandr Porphyrevich Borodin, Hienz Hunsdiecker, and Clare Hunsdiecker ("née" Dieckmann)
* Borrmann effect (a.k.a. Borrmann-Campbell effect) — Gerhard Borrman (and H. N. Campbell)
* Bortle Dark-Sky Scale — John E. Bortle
* Bose-Einstein condensate, effect, statistics — Satyendra Nath Bose and Albert Einstein
* Boson — Satyendra Nath Bose
* Boussinesq number — Joseph Boussinesq
* Bouveault-Blanc reaction — Louis Bouveault and Gustave Louis Blanc
* Bouveault-Locquin synthesis — Louis Bouveault and René Locquin
* Boyle's law (a.k.a. Boyle-Mariotte law) — Robert Boyle (and Edme Mariotte)
* Brackett line, series — Frederick Sumner Brackett
* Bragg angle, Bragg's law, Bragg plane — William Henry Bragg and his son William Lawrence Bragg
* Bragg diffraction — William Lawrence Bragg
* Brans-Dicke theory — Carl H. Brans and Robert H. Dicke
* Braun-Blanquet method — Josias Braun-Blanquet
* Bravais lattice — Auguste Bravais
* Bravais-Miller indices (a.k.a. Miller-Bravais indices) — Auguste Bravais and William Hallowes Miller
* Brayton cycle — George B. Brayton
* Bredt's rule - Julius Bredt
* Brewster's angle, law — David Brewster
* Brillouin-Mandel'shtam effect — see Mandel'shtam-Brillouin scattering, below
* Brillouin zone — Léon Brillouin
* Brinkman layer, number — Hendrik C. Brinkman
* Brinkman-Forchheimer equations — Hendrik C. Brinkman and Philipp Forchheimer
* Brook rearrangement — Adrian Gibbs Brook
* Brownian motion — Robert Brown
* Brownell-Katz number — Lloyd E. Brownell and Donald L. Katz
* Bucherer reaction — Hans Theodor Bucherer
* Büchi automata — Julius Richard Büchi
* Buckingham theorem (a.k.a. Vaschy-Buckingham theorem) — Edgar Buckingham (and Aimé Vaschy)
* Bulygen number — ? Bulygen
* Burali-Forti paradox — Cesare Burali-Forti
* Butcher-Oemler effect — Harvey Raymond Butcher and Augustus Oemler, Jr.

C

* Cabannes-Daure effect — Jean Cabannes and Pierre Daure
* Cadiot-Chodkiewicz coupling, reaction — Paul Cadiot and Wladyslav Chodkiewicz
* Callendar Effect — Guy Stewart Callendar
* Callier effect — André Callier
* Callippic cycle — Callippus of Cyzicus
* Calvin cycle (a.k.a. Calvin-Benson cycle) — Melvin Calvin (and Andy Benson)
* Cannizzaro reaction — Stanislao Cannizzaro
* Cardan angles (a.k.a. Tait-Bryan angles) — Gerolamo Cardano
* Carnot cycle, number — Nicolas Léonard Sadi Carnot
* Carpenter effect (a.k.a. Ideomotor effect) — William Benjamin Carpenter
* Cartan–Kähler theorem — Élie Cartan, Erich Kähler
* Casimir effect — Hendrik Casimir
* Catalan's conjecture (a.k.a. Mihăilescu's theorem), Catalan numbers — Eugène Charles Catalan
* Cauchy number (a.k.a. Hooke number) — Augustin-Louis Cauchy
* Cauchy-Kovalevskaya theorem — Augustin-Louis Cauchy, Sofia Kovalevskaya
* Cauer filter — Wilhelm Cauer
* Chandler wobble — Seth Carlo Chandler
* Chandrasekhar effect, limit, number — Subrahmanyan Chandrasekhar
* Chapman rearrangement — Arthur William Chapman
* Chappuis bands (sometimes misspelled "Chappius") — J. Chappuis
* Chebyshev distance, equation, filter, linkage, polynomials — Pafnuty Lvovich Chebyshev
* Chebyshev's inequality (a.k.a. Bienaymé-Chebyshev inequality) — Pafnuty Lvovich Chebyshev (and Irénée-Jules Bienaymé)
* Cherenkov radiation (a.k.a. Cherenkov-Vavilov radiation) — Pavel Alekseyevich Cherenkov (and Sergey Ivanovich Vavilov)
* Chichibabin pyridine amination reaction — Alexei Yevgenievich Chichibabin
* Christiansen cavity, effect, filter — Christian Christiansen
* Christoffel symbol — Elwin Bruno Christoffel
* Christofilos effect — Nicholas Christofilos
* Chugaev elimination/reaction, reagent — Lev Aleksandrovich Chugaev
* Ciamician photodisproportionation, synthesis — Giacomo Luigi Ciamician
* Claisen condensation, rearrangement — Rainer Ludwig Claisen
* Claisen-Ireland rearrangement — Rainer Ludwig Claisen and Robert Ellsworth Ireland
* Claisen-Schmidt reaction — Rainer Ludwig Claisen and J. Gustav Schmidt
* Clapp oscillator — James K. Clapp
* Clarke orbit — Arthur C. Clarke
* Clausius number — Rudolf Julius Emanuel Clausius
* Clayden effect — Arthur W. Clayden
* Clemmensen reduction — Erik Christian Clemmensen
* Clifton effect — Rachel K. Clifton
* Coanda effect — Henri Coanda
* Coase theorem — Ronald Coase
* Coke-Rothkopf index — Ester U. Coke and Ernst Z. Rothkopf
* Colburn-Chilton analogy (a.k.a. Colburn analogy) — Allan Philip Colburn and Thomas H. Chilton
* Coleman-Liau index — Meri Coleman and T. L. Liau
* Coleman-Mandula theorem — Sidney Coleman and Jeffrey Mandula
* Colpitts oscillator — Edwin H. Colpitts
* Compton effect, scattering, wavelength — Arthur Compton
* Coolidge effect — from a joke attributed to John Calvin Coolidge, Jr.
* Cooper pair — Leon Cooper
* Cope elimination, rearrangement — Arthur Clay Cope
* Corey-Fuchs reaction — Elias James Corey and Philip L. Fuchs
* Corey-Kim oxidation — Elias James Corey and Choung Un Kim
* Corey-Winter olefin synthesis — Elias James Corey and Roland Arthur Edwin Winter
* Coriolis effect — Gaspard-Gustave Coriolis
* Cornforth rearrangement — Sir John Warcup Cornforth
* Cotton effect — Aimé Auguste Cotton
* Cotton-Mouton effect — Aimé Auguste Cotton and H. Mouton
* Coulomb constant, law — Charles Augustin de Coulomb
* Coulter counter, principle — Wallace Henry Coulter
* Cowling number — probably Thomas George Cowling
* Coxeter-Dynkin diagram — Harold Scott MacDonald Coxeter and Eugene Borisovich Dynkin
* Crabtree effect — Herbert Grace Crabtree
* Crane-Monstein effect – Oliver Crane and Christian Monstein
* Criegee reaction, rearrangement — Rudolf Criegee
* Curie point — Pierre Curie
* Curry's paradox — Haskell Curry
* Curtin-Hammett principle — David Yarrow Curtin and Louis Plack Hammett
* Curtius rearrangement — Theodor Curtius
* Cuvierian tubules, Cuvier's organ — Georges Cuvier

D

* Dakin reaction, Dakin-West reaction - Henry Drysdale Dakin (and Randolph West)
* Dale-Chall index — Edgar Dale and Jeanne S. Chall
* Dalton's law (of partial pressures) — John Dalton
* Danishefsky reaction — Samuel J. Danishefsky
* Darlington pair — Sidney Darlington
* Darwin point — Charles Darwin
* Darzens condensation — Auguste George Darzens
* de Broglie wavelength — Louis de Broglie
* de Bruijn sequences — Nicolaas Govert de Bruijn
* de Haas-Van Alphen effect — Wander Johannes de Haas and P. M. van Alphen
* de Haas-Shubnikov effect (a.k.a. Shubnikov-De Haas effect) — Wander Johannes de Haas and Lev Vasiljevich Shubnikov
* Deborah number – the prophetess Deborah (Bible, Judges 5:5)
* Debye effect, length, model, shielding — Peter Joseph William Debye
* Debye-Falkenhagen effect — Peter Joseph William Debye and Hans Falkenhagen
* Richard Dedekind has many topics named after him; see biography article.
* Delbrück scattering — Max Ludwig Henning Delbrück
* Delépine reaction — Stéphane Marcel Delépine
* Dellinger effect (a.k.a. Mögel-Dellinger effect) — John Howard Dellinger (and Hans Mögel)
* Demjanov rearrangement — Nikolai Jakovlevich Demjanov
* Dess-Martin oxidation — Daniel Benjamin Dess and James Cullen Martin
* Destriau effect — Georges Destriau
* deVries effect — Hessel deVries
* Dieckmann condensation — Walter Dieckmann
* Diels-Alder reaction — Otto Paul Hermann Diels and Kurt Alder
* Diophantine equation — Diophantus of Alexandria
* Dirac comb, constant, equation, delta function, measure — Paul Dirac
* Johann Peter Gustav Lejeune Dirichlet has dozens of formulas named after him.
* Divisia index — François Divisia
* Doebner-Miller reaction — Oscar Döbner (Doebner) and Wilhelm von Miller
* Dollo's law — Louis Dollo
* Donnan effect (a.k.a. Gibbs-Donnan effect) — see Gibbs-Donnan effect, below
* Doppler effect (a.k.a. Doppler-Fizeau effect), Doppler profile — Christian Doppler (and Hippolyte Fizeau)
* Dötz reaction — Karl Heinz Dötz
* Drake equation ((a.k.a. Sagan equation, Green Bank equation) — Frank Drake (or Carl Sagan or Green Bank, West Virginia, home to the National Radio Astronomy Observatory (NRAO))
* Droste effect — Dutch chocolate maker Droste
* Drude model — Paul Drude
* Duff's device — Tom Duff
* Duffing equation, map — ? Duffing
* Duhamel's formula, integral, and principle – Jean-Maria-Constant Duhamel
* Dulong-Petit law — Pierre Louis Dulong and Alexis Thérèse Petit
* Dunitz angle — Jack David Dunitz
* Durfee polynomial, square — William H. Durfee

E

* Eagle effect — Harry Eagle
* Early effect — James M. Early
* Eberhard effect — Gustav Eberhard
* Eddington limit — Arthur Eddington
* Edgeworth-Bowley box — Francis Ysidro Edgeworth and Arthur Lyon Bowley
* Edison effect — Thomas Edison
* Edman degradation — Pehr Victor Edman
* Edward-Lemieux effect (a.k.a. Anomeric effect) — John Thomas Edward and Raymond U. Lemieux
* Eglinton reaction — Geoffrey Eglinton
* Ehrenfest paradox, time — Paul Ehrenfest
* Ehrenfest-Tolman effect — Paul Ehrenfest(?) and Richard Chace Tolman
* Eimer's organ — Gustav Heinrich Theodor Eimer
* Einstein shift — Albert Einstein
* Einstein-de Haas effect — Albert Einstein and Wander Johannes de Haas
* Einstein-Podolsky-Rosen paradox (a.k.a. EPR paradox, Einstein-Podolsky-Rosen-Bohm paradox) — Albert Einstein, Boris Podolsky, Nathan Rosen (and David Bohm)
* Ekman layer — Walfrid Ekman
* Elbs reaction — Karl Elbs
* Elliott-Halberstam conjecture — Peter D. T. A. Elliott and Heini Halberstam
* Elman network — Jeff Elman
* Elsasser number - Walter M. Elsasser
* Emde reaction — Hermann Karl Christian Maximilian Emde
* Engel curve — Ernst Engel
* Epimenides paradox — Epimenides of Knossos
* Erlenmeyer flask, rule, synthesis — Richard August Carl Emil Erlenmeyer
* Eschenmoser fragmentation — Albert Eschenmoser
* Eschweiler-Clarke reaction — Wilhelm Eschweiler and Hans Thacher Clarke
* Eshelby's inclusion — John D. Eshelby
* Étard reaction — Alexandre Léon Étard
* Ettinghausen effect — Albert von Ettinghausen
* Euler this and that — Leonhard Euler
* Evershed effect — John Evershed

F

* Faà di Bruno's formula — Francesco Faà di Bruno
* Faraday constant, effect, Faraday's law of induction, Faraday's law of electrolysis — Michael Faraday
* Farnsworth-Hirsch fusor — Philo T. Farnsworth and Robert L. Hirsch
* Farr-Jenkins-Paterson index — James N. Farr, James J. Jenkins, and Donald G. Paterson
* Favorskii reaction, rearrangement — Alexei Yevgrafovich Favorskii
* Fehling reaction — Herman Christian von Fehling
* Fenton reaction — Henry John Horstman Fenton
* Fermat's principle — Pierre de Fermat
* Fermi energy, paradox, surface, Fermion — Enrico Fermi
* Fermi-Dirac statistics — Enrico Fermi and Paul Dirac
* Ferrers diagram (a.k.a. Young diagram, Ferrers graph) — Norman Macleod Ferrers
* Feshbach resonance — Herman Feshbach
* Feynman diagram — Richard Feynman
* Feynman-Kac model — Richard Feynman and Mark Kac
* Finkelstein reaction — Hans Finkelstein
* Fischer esterification, indole synthesis — Emil Hermann Fischer
* Fischer-Hafner reaction — Ernst Otto Fischer and Walter Hafner
* Fischer-Tropsch process — Franz Joseph Emil Fischer and Hans Tropsch
* Fischer-Hepp rearrangement — Otto Philipp Fischer and Eduard Hepp
* Fisher distribution — Ronald A. Fisher
* Fisher equation — Irving Fisher
* Fitts' law — Paul M. Fitts
* Flesch-Kincaid Readability Test — Rudolf F. Flesch and J. Peter Kincaid
* Fletcher effect (economy) — T. W. Fletcher
* Fletcher effect (physics) (a.k.a. Hartman effect, Hartman-Fletcher effect) — John R. Fletcher (and Thomas E. Hartman)
* Fletcher effect (psychology) (Fletcher-Munson effect) and Fletcher-Munson curve — Harvey Fletcher and Wilden A. Munson
* Flynn effect — James R. Flynn
* Fog index — see Gunning Fog index, below
* Forbush effect — Scott Ellsworth Forbush
* Forer effect (a.k.a. Barnum effect) — Bertram R. Forer (and Phineas Taylor Barnum)
* Foucault effect (a.k.a. Foucault pendulum) — Jean Bernard Léon Foucault
* Fourier number — Joseph Fourier
* Franck-Condon factor, principle, transition — James Franck and Edward Uhler Condon
* Franssen effect — Nico Franssen
* Franz-Keldysh effect — Walter Franz and Leonid V. Keldysh
* Fraunhofer diffraction, lines — Joseph von Fraunhofer
* Fresnel zone — Augustin Fresnel
* Frey effect — Allan H. Frey
* Friedel oscillations — Jacques Friedel
* Friedel-Crafts reaction — Charles Friedel and James Mason Crafts
* Friedländer synthesis — Paul Friedländer
* Friedmann-Lemaître-Robertson-Walker metric (a.k.a. Friedmann-Robertson-Walker metric, Robertson-Walker metric) — Alexander Friedmann, Georges Lemaître, Howard Percy Robertson and Arthur Geoffrey Walker
* Fries and Photo-Fries rearrangement — Karl Theophil Fries
* Fritsch-Buttenberg-Wiechell rearrangement — Paul Ernst Moritz Fritsch, Wilhelm Paul Buttenberg, and Heinrich G. Wiechell
* Frobenius algebra, automorphism, method, norm, theorem — Ferdinand Georg Frobenius
* Fröhlich term — Herbert Fröhlich
* Froude number — William Froude
* Fry Readability Formula, Graph — Edward Fry
* Fujita scale (a.k.a. F-Scale, Fujita-Pearson scale) — Tetsuya Theodore Fujita (and Allen Pearson)
* Fujiwhara effect — Sakuhei Fujiwhara

G

* Gabriel synthesis — Siegmund Gabriel
* Gantmakher effect — Vsevolod Feliksovich Gantmakher
* Gattermann reaction — Ludwig Gattermann
* Gattermann-Koch reaction — Ludwig Gattermann and Julius Arnold Koch
* Gause's principle/law — Georgyi Frantsevitch Gause
* Gauss effect, Gauss' law — Carl Friedrich Gauss
* Geib-Spevack process (a.k.a. Girdler sulfide (GS) process) — Karl-Hermann Geib and Jerome S. Spevack (and the Girdler company, which built the first American plant using the process)
* Geiger counter (a.k.a. Geiger-Müller counter) — Johannes Wilhelm (Hans) Geiger (and Walther Müller)
* Geiger-Marsden experiment (a.k.a. Rutherford experiment) — Johannes Wilhelm (Hans) Geiger and Ernest Marsden
* Geiger-Müller tube — Johannes Wilhelm (Hans) Geiger and Walther Müller
* Geiger-Nuttall law/rule — Johannes Wilhelm (Hans) Geiger and John Mitchell Nuttall
* Geissler tube — Heinrich Geissler
* Gibbs entropy, free energy, paradox, Gibbs' phase rule, Gibbs phenomenon — Josiah Willard Gibbs
* Gibbs-Donnan effect (a.k.a. Donnan effect) — Josiah Willard Gibbs and Frederick G. Donnan
* Gibbs-Marangoni effect (a.k.a. Marangoni effect) — Josiah Willard Gibbs and Carlo Marangoni
* Gibbs-Helmholtz equation — Josiah Willard Gibbs and Hermann von Helmholtz
* Gibbs-Thomson effect — Josiah Willard Gibbs and three Thomsons: James Thomson , William Thomson, 1st Baron Kelvin, Sir J. J. Thomson
* Giffen good — Sir Robert Giffen
* Girdler process (a.k.a. Geib-Spevack (GS) process) — see Geib-Spevack process, above
* Glaser coupling reaction — Carl Andreas Glaser
* Goldbach's conjecture — Christian Goldbach
* Goldstone boson (a.k.a. Nambu-Goldstone boson) — see Nambu-Goldstone boson, below
* Gomberg-Bachmann reaction — Moses Gomberg and Werner Emmanuel Bachmann
* Goodhart's law — Charles Goodhart
* Goos-Hänchen effect/shift — F. Goos and H. Lindberg-Hänchen
* Graham reaction — William Hardin Graham
* Grashof number — Franz Grashof
* Gregory's diverticulum — Emily Ray Gregory
* Greisen-Zatsepin-Kuzmin cut-off/limit — Kenneth Greisen, Georgiy Zatsepin and Vadim Kuzmin
* Gresham's law — Sir Thomas Gresham
* Grieco condensation — Paul Anthony Grieco
* Griess test (diazotization reaction) — Johann Peter Griess
* Grignard reaction — François Auguste Victor Grignard
* Grob fragmentation — Cyril A. Grob
* Grotrian diagram — Walter Robert Wilhelm Grotrian
* Grotthuss chain — Christian Johann Dietrich Theodor von Grotthuss
* Grotthuss-Draper law — Christian Johann Dietrich Theodor von Grotthuss and John William Draper
* Guggenheim method — Edward Armand Guggenheim
* Gunn diode, effect — John Battiscombe Gunn
* Gunning fog index (a.k.a. Fog index) — Robert Gunning ("fog" is the noun)
* Gutenberg-Richter law — Beno Gutenberg and Charles Francis Richter

H

* Haar measure — Alfréd Haar
* Hadamard inequality — Jacques Solomon Hadamard
* Hadamard-Rademacher-Walsh transform (a.k.a. Hadamard transform) — Jacques Solomon Hadamard, Hans Adolph Rademacher, and Joseph Leonard Walsh
* Haldane effect — John Scott Haldane
* Haldane's principle — John Burdon Sanderson Haldane
* Hall effect — Edwin Hall
* Hamilton's rule — William Donald "Bill" Hamilton
* Hammond postulate — George Simms Hammond
* Hanle effect — Wilhelm Hanle
* Hanlon's razor (a.k.a. Heinlein's razor) — Robert J. Hanlon (or Robert A. Heinlein)
* Hansch constant — Corwin Herman Hansch
* Hardy notation, space — Godfrey H. Hardy
* Hardy-Littlewood circle method, first conjecture — Godfrey H. Hardy and John E. Littlewood
* Hardy-Weinberg equilibrium/law/principle — Wilhelm Weinberg and Godfrey H. Hardy
* Harrod-Johnson diagram — Roy F. Harrod and Harry G. Johnson
* Hartley bands — Walter Noel Hartley
* Hartley oscillator — Ralph Hartley
* Hartman effect (a.k.a. Fletcher effect, Hartman-Fletcher effect)— Thomas E. Hartman (and John R. Fletcher)
* Hartree energy — Douglas Hartree
* Hasse condition, diagram, principle — Helmut Hasse
* Hasse-Minkowski theorem — Helmut Hasse and Hermann Minkowski
* Hausdorff dimension — Felix Hausdorff
* Haworth formula — Sir Walter Norman Haworth
* Hawthorne effect — from the Hawthorne Works factory (where experiments were carried out 1924—1932)
* Hayflick limit — Leonard Hayflick
* Hawking radiation (a.k.a. Bekenstein-Hawking radiation) — Stephen Hawking (and Jacob Bekenstein)
* Hebbian learning — Donald Olding Hebb
* Heine-Borel theorem — Heinrich Eduard Heine and Félix Édouard Justin Émile Borel
* Heinlein's razor — see Hanlon's razor, above
* Heisenberg uncertainty principle — Werner Heisenberg
* Hellmann-Feynman theorem — Hans Hellmann and Richard Feynman
* Helmholtz free energy, Helmholtz resonance — Hermann von Helmholtz
* Hénon maps — Michel Hénon
* Henrietta's law — "see Leavitt's law, below"
* Herschel effect — Sir John Herschel
* Hertz effect — Heinrich Rudolf Hertz
* Hertzsprung-Russell diagram — Ejnar Hertzsprung and Henry Norris Russell
* Herzberg bands — Gerhard Herzberg
* Heusler alloy — Fritz Heusler
* Heyting algebra, arithmetic — Arend Heyting
* Higgs boson, field — Peter Higgs
* Higgs' laws — Simon Robert Higgs
* Higgs mechanism — see Anderson-Higgs mechanism, above
* Hilbert-Waring theorem (a.k.a. Waring's problem) — David Hilbert and Edward Waring
* Hill sphere (a.k.a. Roche sphere) — George William Hill (and Édouard Roche)
* Hills cloud — Jack G. Hills
* Hipparchic cycle — Hipparchus of Nicaea (a.k.a. Hipparchus of Rhodes)
* Hirayama family — Kiyotsugu Hirayama
* Hirsch-Meeks fusor — Robert L. Hirsch and Gene A. Meeks
* Hoffmann's organ — C. K. Hoffmann
* Hofstadter's butterfly, law — Douglas Richard Hofstadter
* Holetschek effect — Johann Holetschek
* Hooper-Monstein effect – William J. Hooper and Christian Monstein
* Hopfield bands — John J. Hopfield
* Hopfield network — John J. Hopfield
* Hubbert peak — Marion King Hubbert
* Hubble constant, expansion — Edwin Hubble
* Hueppe's rule — F. Hueppe
* Huggins bands — Sir William Huggins
* Huggins effect — William H. Huggins
* Hull rule — Clark L. Hull
* Humphreys line, series — Curtis J. Humphreys
* Hund's Rules — Friedrich Hund
* Hunsdiecker reaction — Heinz Hunsdiecker and Cläre Hunsdiecker
* Hunt effect — Robert W. G. Hunt
* Hutchison effect — John Hutchison
* Huygens' principle — Christiaan Huygens

I

* Imamura-Iida tsunami intensity scale — Fumihiko Imamura and Kumizi Iida
* Imamura-Soloviev tsunami intensity scale — Fumihiko Imamura and Sergey L. Soloviev
* Imbert-Fedorov effect/shift (a.k.a. Imbert-Pavageau-Fedorov effect) — C. Imbert, F. I. Fedorov (and J. Pavageau)
* Ishikawa diagram — Kaoru Ishikawa
* Ising model (a.k.a. Lenz-Ising model) — Ernst Ising (and Wilhelm Lenz)

J

* Jackson diagram — Michael A. Jackson
* Jahn–Teller effect — Hermann Arthur Jahn and Edward Teller
* Jarque-Bera test — Carlos M. Jarque and Anil K. Bera
* Jeffrey's rule — Richard Jeffrey
* Johnson–Nyquist noise — John B. Johnson and Harry Nyquist
* Johnston diagram — Russell Johnston
* Jonnesco's fossa — Thomas Jonnesco
* Jordan's rule/law — David Starr Jordan
* Josephson constant, effect, junction — Brian David Josephson
* Jost's laws (of rehearsal and forgetting) — Adolf Jost
* Joule's law (a.k.a. Joule-Lenz law) — James Prescott Joule (and Heinrich Friedrich Emil Lenz)
* Joule–Thomson effect (a.k.a. Joule–Kelvin effect) — James Prescott Joule and William Thomson, 1st Baron Kelvin

K

* K3 surface — Ernst Kummer, Erich Kähler, Kunihiko Kodaira
* Kac model — Mark Kac
* Kähler differential, manifold, metric — Erich Kähler
* Kapitsa–Dirac effect — Pyotr Leonidovich Kapitsa and Paul Dirac
* Karnaugh map (a.k.a. Karnaugh-Veitch map, Veitch diagram) — Maurice Karnaugh (and Edward W. Veitch)
* Kater's pendulum — Captain Henry Kater
* Kaye effect — Alan Kaye
* Keeling curve — Charles David Keeling
* Kelvin effect — William Thomson, 1st Baron Kelvin
* Kelvin-Voigt material, model – Woldemar Voigt and William Thomson, 1st Baron Kelvin
* Kennelly-Heaviside layer — Arthur Edwin Kennelly and Oliver Heaviside
* Kerr effect — John Kerr
* Kiepert hyperbola, parabola — Friedrich Wilhelm August Ludwig Kiepert
* Kirkendall effect — Ernest Kirkendall
* Klein-Gordon equation — Oskar Klein and Walter Gordon
* Klein-Nishina effect — Oskar Klein and Yoshio Nishina
* Knudsen cell, effect, number — Martin Hans Christian Knudsen
* Kochen–Specker paradox — Simon Kochen and Ernst Specker
* Kodaira dimension, embedding theorem, vanishing theorem — Kunihiko Kodaira
* Kodaira–Spencer mapping — Kunihiko Kodaira, Donald C. Spencer
* Koenigs–Knorr reaction — Wilhelm Koenigs and Edward Knorr
* Kohn effect — Walter Kohn
* Kohn-Sham equations — Walter Kohn and Lu Jeu Sham
* Kohonen network — Teuvo Kohonen
* Kolbe-Schmitt reaction and Kolbe electrolysis— Adolph Wilhelm Hermann Kolbe and Rudolf Schmitt
* Kondo effect — Jun Kondo
* Kornblum oxidation and Kornblum–DeLaMare rearrangement — Nathan Kornblume and Harold E. DeLaMare
* Koss–Gräer effect — Brian Koss and David Gräer
* Kossel effect, Kossel lines, Kossel diagram — Walther Kossel
* Kossel–Möllenstedt pattern — Walther Kossel and Gottfried Möllenstedt
* Kosterlitz–Thouless transition — see Berezinsky–Kosterlitz–Thouless transition, above
* Kostinsky effect — Sergey Konstantinovich Kostinsky (a.k.a. S. K. Kostinskii)
* Kozai effect — Yoshihide Kozai
* Krebs cycle — Hans Adolf Krebs
* Kratzer potential — Adolf Kratzer
* Krishnan effect — Rappal S. Krishnan
* Kronecker delta — Leopold Kronecker
* Kuiper Belt — Gerard Kuiper
* Kummer's equation, Kummer's functions, Kummer surface — Ernst Kummer
* Kuramoto model — Yoshiki Kuramoto

L

* Lagrangian mechanics, Lagrange points — Joseph Louis Lagrange
* Laing-Garrington effect — Robert Laing and Simon Garrington
* Lamb shift (a.k.a. Lamb-Retheford shift) — Willis Lamb (and Robert Retheford)
* Lambert's emission law (a.k.a. Lambert's cosine law) — Johann Heinrich Lambert
* Landau damping, pole — Lev Davidovich Landau
* Landau–Pomeranchuk–Migdal effect — Lev Davidovich Landau, Isaak Pomeranchuk, and Arkady Migdal
* Landau-Zener transition — Lev Davidovich Landau and Clarence Zener
* Landé g-factor — Alfred Landé
* Lange's nerve — W. Lange
* Langmuir probe — Irving Langmuir
* Langmuir-Blodgett film — Irving Langmuir and Katharine B. Blodgett
* Larmor frequency, precession, radius — Sir Joseph Larmor
* Larsen effect — Soren Larsen
* Laspeyres index — Ernst Louis Etienne Laspeyres
* Leavitt's law (a.k.a. Henrietta's law) — Henrietta Swan Leavitt
* Le Chatelier's principle — Henri Louis Le Chatelier
* Leduc-Righi effect (a.k.a. Righi-Leduc effect) — S. Leduc and Augusto Righi
* Leidenfrost effect, point — Johann Gottlob Leidenfrost
* Lenard effect — Philipp Eduard Anton von Lenard
* Lennard-Jones potential — John Lennard-Jones
* Lense-Thirring effect (a.k.a. Thirring effect) — Josef Lense and Hans Thirring
* Lenz's law — Heinrich Friedrich Emil Lenz
* Lenz-Ising model — see Ising model, above
* Levi-Civita symbol — Tullio Levi-Civita
* Little-Parks effect — W. A. Little and R. D. Parks
* Littlewood-Offord problem — John E. Littlewood and A. Cyril Offord
* Locard's exchange principle – Edmond Locard
* Lohmann-Ruchti effect — Martin Lohmann and Hans Ruchti
* Lombard effect — Étienne Lombard
* Lomonosov effect — Mikhail Vasilyevich Lomonosov
* London force — Fritz London
* Lorentz force, transformation — Hendrik Antoon Lorentz
* Lorentz-Lorenz equation — Hendrik Antoon Lorentz and Ludvig Lorenz
* Lorenz attractor — Edward Norton Lorenz
* Lorenz curve — Max O. Lorenz
* Lorenz gauge condition — Ludvig Lorenz
* Lorenz-Mie scattering — see Mie scattering, below
* Lorenzini's ampullae — Stefano Lorenzini
* Loschmidt's paradox — Johann Loschmidt
* Lossev effect — O. V. Lossev
* Lotka-Volterra equation — Alfred J. Lotka and Vito Volterra
* Love waves — Augustus Edward Hough Love
* Lucas critique — Robert Lucas, Jr.
* Ludwig's nerve — Hubert Ludwig
* Lyapunov's central limit theorem, condition, equation, exponent, fractal, function, stability, test, time and tube — Aleksandr Mikhailovich Lyapunov
* Lyman line, series — Theodore Lyman
* Lyman-Birge-Hopfield bands (a.k.a. Birge-Hopfield bands) — Theodore Lyman, Raymond T. Birge, and John J. Hopfield

M

* Mach band/effect, number, principle — Ernst Mach
* Mach-Zehnder interferometer — Ernst Mach and Ludwig Zehnder
* Madelung constant, Madelung rule, Madelung energy — Erwin Madelung
* Maggi-Righi-Leduc effect — Gian Antonio Maggi, Augusto Righi and S. Leduc
* Magnus effect — Heinrich Gustav Magnus
* Mahalanobis distance — Prasanta Chandra Mahalanobis (প্রশান্ত চন্দ্র মহলানবিস)
* Mahler measure, Mahler's theorem — Kurt Mahler
* Malmquist bias, effect — Karl Gunnar Malmquist
* Malus' law — Étienne-Louis Malus
* Malthusian parameter — named by Ronald Fisher as a criticism of Thomas Robert Malthus
* Malthusian catastrophe, growth model — Thomas Robert Malthus
* Mandel'shtam-Brillouin scattering — Leonid Isaakovich Mandel'shtam and Léon Brillouin
* Marangoni cell/convection (a.k.a. Bénard-Marangoni convection) — see Bénard-Marangoni cell/convection, above
* Marangoni effect (a.k.a. Gibbs-Marangoni effect) — see Gibbs-Marangoni effect, above
* Markov's inequality, chain, partition, Markovian process — Andrey Markov
* Mathieu functions — Émile Léonard Mathieu
* Matilda effect — Matilda Joslyn Gage
* Matthew effect — Matthew the Evangelist
* Maxwell effect (optics) — James Clark Maxwell
* Maxwell-Boltzmann distribution — James Clark Maxwell and Ludwig Boltzmann
* Maxwell-Wien bridge — James Clark Maxwell(?) and Wilhelm Wien
* Mazurkiewicz trace — Antoni Mazurkiewicz
* McCollough effect — Celeste McCollough
* McCulloch-Pitts neuron — Warren McCulloch and Walter Pitts
* McGurk effect (a.k.a. McGurk-MacDonald effect) — Harry McGurk (and John MacDonald
* Meissner effect (a.k.a. Meissner-Ochsenfeld effect) — Walter Meissner (and Robert Ochsenfeld)
* Mercalli intensity scale (Modified Mercalli scale) — Giuseppe Mercalli
* Metonic cycle — Meton of Athens
* Meyers synthesis — Albert I. Meyers
* Mie scattering (a.k.a. Lorenz-Mie scattering) — Gustav Mie (and Ludvig Lorenz)
* Mihăilescu's theorem (a.k.a. Catalan's conjecture) — Preda Mihăilescu
* Mikheyev-Smirnov-Wolfenstein effect — Stanislav Mikheyev, Alexei Smirnov, and Lincoln Wolfenstein
* Miller effect — John Milton Miller (John M. Miller)
* Miller indices (a.k.a. Miller-Bravais indices) — William Hallowes Miller (and Auguste Bravais)
* Misznay-Schardin effect — Col. Misznay and Hubert Schardin
* Mögel–Dellinger effect — see Dellinger effect, above
* Mohorovičić discontinuity (Moho) — Andrija Mohorovičić
* Mohr's circle — Christian Otto Mohr
* Mohr-Coulomb theory — Christian Otto Mohr and Charles-Augustin de Coulomb
* Morgan unit — Thomas Hunt Morgan
* Morse potential — Philip M. Morse
* Mössbauer effect — Rudolf Mössbauer
* Mott cross-section, Mott insulator, Mott transition — Nevill Francis Mott
* Mpemba effect — Erasto B. Mpemba
* Müllerian mimicry — Fritz Müller
* Munroe effect — Charles Edward Munroe
* Murphy's law — Maj. Edward A. Murphy, Jr.

N

* Nambu-Goldstone boson (a.k.a. Goldstone boson) — Yoichiro Nambu and Jeffrey Goldstone
* Nash equilibrium — John Forbes Nash
* Nassi-Shneiderman diagram — Isaac Nassi and Ben Shneiderman
* Necker cube — Louis Albert Necker
* Néel temperature — Louis Néel
* Nernst equation — Walther Hermann Nernst
* Nernst-Ettingshausen effect — Walther Hermann Nernst and Albert von Ettingshausen
* Newcomb's paradox — William Newcomb
* Newton's rings, Newtonian constant, mechanics — Isaac Newton
* Nichols-Tolman effect — Nichols and Richard Chace Tolman
* Nordmann-Tikhoff effect — Charles Nordmann and Gavriil Adrianovich Tikhov
* Nordtvedt effect — Kenneth L. Nordtvedt
* Nurgaliev's law — Ildus S. Nurgaliev
* Nyquist frequency, Nyquist rate — Harry Nyquist
* Nyquist-Shannon sampling theorem (a.k.a. Nyquist-Shannon-Kotelnikov, Whittaker-Shannon-Kotelnikov, Whittaker-Nyquist-Kotelnikov-Shannon, WKS theorem) — Harry Nyquist, Claude Shannon, E. T. Whittaker, and Vladimir Kotelnikov

O

* O'Connell effect — Daniel Joseph Kelly O'Connell
* Olbers' paradox — Heinrich Wilhelm Olbers
* Ohm's law — Georg Ohm
* Okun's law — Arthur Okun
* Omori's law — Fusakichi Omori
* Onnes effect — Heike Kamerlingh Onnes
* Oort cloud (a.k.a. Öpik-Oort Cloud) — Jan Hendrik Oort (and Ernst Julius Öpik)
* Ostwald's dilution law, Ostwald process — Friedrich Wilhelm Ostwald
* Overhauser effect — Albert Overhauser
* Ovshinsky effect — Stanford R. Ovshinsky

P

* Paal-Knorr synthesis — Carl Paal and Ludwig Knorr
* Pareto chart, distribution, efficiency, index, principle — Vilfredo Federico Damaso Pareto
* Parrondo's paradox — J. M. R. Parrondo
* Paschen curve, line, law — Friedrich Paschen
* Paschen-Back effect — Friedrich Paschen and Ernst Back
* Paternò-Büchi reaction - Emanuele Paternò and George Hermann Büchi
* Pasteur effect — Louis Pasteur
* Pauli exclusion principle — Wolfgang Pauli
* Peano curve — Giuseppe Peano
* Pearson-Anson effect — S. O. Pearson and H. St. G. Anson
* Péclet number — Jean Claude Eugène Péclet
* Peltier effect — Jean Charles Athanase Peltier
* Perlin noise — Ken Perlin
* Perron-Frobenius theorem — Oskar Perron, and Ferdinand Georg Frobenius
* Petkau effect — Abram Petkau
* Petri dish — Julius Richard Petri
* Petri net — Carl Adam Petri
* Peyer's patches — Johann Conrad Peyer
* Pfund line, series — August Herman Pfund
* Phillips curve — William Phillips (economist)
* Pigou effect — Arthur Cecil Pigou
* Pisot-Vijayaraghavan number — Charles Pisot and Tirukkannapuram Vijayaraghavan
* Planck constant, length, mass, time — Max Planck
* Platonic year — Plato
* Pockels effect — Friedrich Carl Alwin Pockels
* Pogson ratio — Norman Robert Pogson
* Poincaré map, section — Jules-Henri Poincaré
* Poincaré-Bendixson theorem — Jules-Henri Poincaré and Ivar Otto Bendixson
* Poinsot spiral — Louis Poinsot
* Polian vesicles — Giuseppe Saverio Poli
* Potts cluster, Potts model (a.k.a. Ashkin-Teller model) — Renfrey B. Potts
* Pourbaix diagram — Marcel Pourbaix
* Poynting effect, vector — John Henry Poynting
* Poynting-Robertson effect — John Henry Poynting and Howard Percy Robertson
* Prandtl number — Ludwig Prandtl
* Primakov effect — ? Primakov
* Proteus phenomenon — Proteus (mythological god)
* Prouho's membrane — Henri Prouho
* Pulfrich effect — Carl Pulfrich
* Purkinje effect/shift — Johannes Evangelista Purkinje
* Pygmalion effect (a.k.a. Rosenthal effect, Observer-expectancy effect) — Pygmalion (and Robert Rosenthal)

R

* Rabi oscillations — Isidor Isaac Rabi
* Rademacher distribution, function, series, sum — Hans Adolph Rademacher
* Rademacher-Kolmogorov theorem — Hans Adolph Rademacher and Andrey Nikolaevich Kolmogorov
* Rademacher-Menchov theorem — Hans Adolph Rademacher and ? Menchov
* Raman scattering — Chandrasekhara Venkata Raman
* Ramsauer-Townsend effect (a.k.a. Ramsauer effect, Townsend effect) — Carl Ramsauer and John Sealy Townsend
* Ramsden circle/disc/eyepoint, eyepiece — Jesse Ramsden
* Ramsey spectroscopy - Norman F. Ramsey
* Ramsey theory — Frank Plumpton Ramsey
* Ramsey-DeFinetti theorem — Frank Plumpton Ramsey and Bruno de Finetti
* Rapoport's rule — Eduardo H. Rapoport
* Raychaudhuri's equation — Amal Kumar Raychaudhuri (অমল কুমার রায়চৌধুরী)
* Raygor Estimate Graph — Alton L. Raygor
* Rayleigh criterion, distribution, fading, number, quotient, scattering, waves — Lord Rayleigh
* Rayleigh-Bénard cell/convection — Lord Rayleigh and Henri Bénard
* Rayleigh-Jeans law — Lord Rayleigh and Sir James Jeans
* Reidemeister moves — Kurt Reidemeister
* Rescorla-Wagner rule — Robert A. Rescorla and Allan R. Wagner
* Reynolds number, Reynolds analogy — Osborne Reynolds
* Ribot's law (of Retrograde Amnesia) — Théodule Ribot
* Ricardian equivalence — see Barro-Ricardo equivalence, above
* Richardson's constant, equation, law — Owen Willans Richardson
* Richardson number — Lewis Fry Richardson
* Richter magnitude scale — Charles Francis Richter
* Righi-Leduc effect (a.k.a. Leduc-Righi effect) — Augusto Righi and S. Leduc
* Ringelmann effect — Max Ringelmann
* Robertson-Walker metric (a.k.a. Friedmann-Robertson-Walker metric) — see Friedmann-Lemaître-Robertson-Walker metric, above
* Roche limit — Édouard Roche
* Roche sphere (a.k.a. Hill sphere) — Édouard Roche (and George William Hill)
* Rollin film — Bernard V. Rollin
* Rosenthal effect (a.k.a. Pygmalion effect, Observer-expectancy effect) — Robert Rosenthal (and Pygmalion)
* Rossi-Forel scale — Michele Stefano Conte de Rossi and François-Alphonse Forel
* Rössler equation — Otto Rössler
* Rossmann fold — Michael Rossmann
* Ruelle operator, zeta function — David Ruelle
* Ruelle-Perron-Frobenius theorem — David Ruelle, Oskar Perron, and Ferdinand Georg Frobenius
* Ruhmkorff coil — Heinrich D. Ruhmkorff
* Runge's phenomenon — Carle David Tolmé Runge
* Russell's paradox — Bertrand Russell
* Rutherford experiment (a.k.a. Geiger-Marsden experiment), scattering — Ernest Rutherford
* Rybczynski theorem — Tadeusz Rybczynski
* Rydberg constant, formula — Johannes Rydberg

* Sabatier or Sabattier effect — Sabat [t] ier , [http://www.cchem.berkeley.edu/~wljeme/Chapt1.html first name unknown]
* Sachs-Wolfe effect — Rainer Kurt Sachs and Arthur Michael Wolfe
* Saffir-Simpson hurricane scale — Herbert S. Saffir and Robert ("Bob") Simpson
* Sagnac effect — Georges Sagnac
* Saha ionization equation (a.k.a. Saha-Langmuir equation) — Megh Nad Saha (মেঘনাদ সাহা) (and Irving Langmuir)
* Sasakian manifold, metric — Shigeo Sasaki
* St. Elmo's fire — Erasmus of Formiae
* Salem number — Raphaël Salem
* Say's law — Jean-Baptiste Say
* Schering Bridge — Harald Schering
* Schild plot, regression analysis — Heinz Otto Schild
* Schottky effect — Walter H. Schottky
* Schröter effect — Johann Hieronymus Schröter
* Schülen-Wilson effect — see Wilson effect, below
* Schuler period, tuning — Maximilian Schuler
* Schumann-Runge bands — Victor Schumann and Carle David Tolmé Runge
* Schwarzschild effect, metric, radius — Karl Schwarzschild
* Scott effect — Elizabeth L. Scott
* Searl effect — John R. R. Searl
* Secchi (stellar) class, depth, disk — Pietro Angelo Secchi
* Seebeck effect — Thomas Johann Seebeck
* Sertoli cells — Enrico Sertoli
* Serre duality — Jean-Pierre Serre
* Seyfert galaxy — Carl Keenan Seyfert
* Shapiro effect — Irwin Shapiro
* Shimizu-Morioka equations — Tatsujiro Shimizu and N. Morioka
* Shubnikov-De Haas effect — see De Haas-Shubnikov effect, above
* Sieberg tsunami intensity scale — August H. Sieberg
* Sieberg-Ambraseys tsunami intensity scale — August H. Sieberg and Nicholas N. Ambraseys
* Simmons-Smith reaction — Howard Ensign Simmons, Jr.
* Simroth's organs — Heinrich Rudolf Simroth
* Smale's horseshoe — Stephen Smale
* Smale-Rössler theorem — Stephen Smale and Otto Rössler
* Snell's law — Willebrord van Roijen Snell
* Soloviev tsunami intensity scale — Sergey L. Soloviev
* Sommerfeld-Kossel displacement law — Arnold Sommerfeld and Walther Kossel
* Spörer's law, Spörer Minimum — Gustav Spörer
* Staebler-Wronski effect — David L. Staebler and Christopher R. Wronski
* Stark effect (a.k.a. Stark-Lo Surdo effect) — Johannes Stark (and Antonino Lo Surdo)
* Stark ladder (a.k.a. Wannier-Stark ladder, q.v.) — Johannes Stark and Gregory Hugh Wannier
* Stark-Einstein law — Johannes Stark and Albert Einstein
* Stebbins-Whitford effect — Joel Stebbins and Albert Edward Whitford
* Stefan's constant, law (a.k.a. Stefan-Boltzmann constant, law) — Jožef Stefan (and Ludwig Boltzmann)
* Stensen's duct — Niels Stensen
* Stern-Levison parameter — S. Alan Stern and Harold F. Levison
* Stevens effect — J. C. and Stanley Smith Stevens
* Stevens' power law — Stanley Smith Stevens
* Stewart's organs — Charles Stewart
* Stewart-Tolman effect — Thomas Dale Stewart and Richard Chace Tolman
* Stirling number — James Stirling
* Stokes radius — George Gabriel Stokes
* Stokes shift — George Gabriel Stokes
* Stolper-Samuelson theorem — Paul Samuelson and Wolfgang Stolper
* Strömgren age, photometry, sphere — Bengt Georg Daniel Strömgren
* Strömgren-Crawford photometry — Bengt Georg Daniel Strömgren and David L. Crawford
* Stroop effect — John Ridley Stroop
* Strouhal number — Vincenc Strouhal
* Stückelberg action — Ernst Carl Gerlach Stueckelberg
* Sturgeon's law — Theodore Sturgeon
* Sturmian trajectories — Charles François Sturm
* Suess effect — Hans Eduard Suess
* Sunyaev-Zel'dovich effect — Rashid Sunyaev and Yakov Zel'dovich

T

* Tait-Bryan angles (a.k.a. Cardan angles, nautical angles) — Peter Guthrie Tait and George Bryan (?)
* Talbot effect — William Henry Fox Talbot
* Teller-Ulam design — Edward Teller and Stanisław Ulam
* Tesla effect, oscillation (a.k.a. Vackár oscillation) — Nikola Tesla (and Jirí Vackár)
* Thévenin's theorem — Léon Charles Thévenin
* Thirring effect — see Lense-Thirring effect, above
* Thomas precession — Llewellyn Thomas
* Thomas-Fermi approximation, model — Llewellyn Hilleth Thomas and Enrico Fermi
* Thomson cross-section, effect — William Thomson, 1st Baron Kelvin
* Thorndike's laws (of effect, readiness, and exercise) — Edward L. Thorndike
* Thorson's rule — Gunnar Thorson
* Thouless energy — David J. Thouless
* Tiedemann's bodies — Friedrich Tiedemann
*Tiffeneau-Demjanov rearrangement - Marc Tiffeneau and Nikolai Demyanov
* Tobin's q — James Tobin
* Tolman effects — Richard Chace Tolman
* Tolman-Oppenheimer-Volkoff limit — Richard Chace Tolman, J. Robert Oppenheimer, and George Michael Volkoff
* Tonks-Girardeau gas — Lewi Tonks and Marvin D. Girardeau
* Townsend effect (a.k.a. Ramsauer effect, Ramsauer-Townsend effect), ionization coefficient — John Sealy Townsend
* Tricomi's equation — Francesco Giacomo Tricomi
* Troxler's effect/fading — Ignaz Paul Vital Troxler
* Tsytovich effect — Vadim N. Tsytovich
* Tsytovich-Razin effect (a.k.a. Tsytovich-Eidman-Razin effect) — see Razin effect, above
* Tychonoff space — Andrey Nikolayevich Tychonoff
* Tyndall effect/scattering — John Tyndall

U

* Unruh effect — William G. Unruh

V

* Vackár oscillator (a.k.a. Tesla oscillator) — Jirí Vackár (and Nikola Tesla)
* Van Allen radiation belt — James Van Allen
* Van de Graaff generator — Dr. Robert Jemison Van de Graaff
* Van der Pol equation, oscillator — Balthasar van der Pol
* Van der Waals force — Johannes Diderik van der Waals
* Van Hove singularity — Léon Van Hove
* Van Stokum cylinder — W. J. van Stokum
* Vavilovian mimicry — Nikolai Ivanovich Vavilov
* Veblen effect — Thorstein Veblen
* Veitch diagram — see Karnaugh map, above
* Venturi effect — Giovanni Battista Venturi
* Venn diagram — John Venn
* Voigt effect, notation, profile — Woldemar Voigt
* Voigt material — see Kelvin-Voigt material, above
* Von Klitzing constant — Klaus von Klitzing
* Von Neumann ordinal, von Neumann architecture — John von Neumann
* Von Restorff effect — Hedwig von Restorff

W

* Wadati-Benioff zone (a.k.a. Benioff zone) — Kiyoo Wadati and Hugo Benioff
* Wahlund effect — Sten Gösta William Wahlund
* Wallace's line — Alfred Russel Wallace
* Walras' law — Leon Walras
* Wannier function, orbital — Gregory Wannier
* Wannier-Stark ladder (a.k.a. Stark ladder) — Gregory Wannier and Johannes Stark
* Warburg effect — Otto Warburg
* Waring's problem (a.k.a. Hilbert-Waring theorem) — Edward Waring (and David Hilbert)
* Weberian apparatus — Ernst Heinrich Weber
* Weierstrass-Casorati theorem — Karl Theodor Wilhelm Weierstrass and Felice Casorati
* Weierstrass's elliptic functions, factorization theorem, function, M-test, preparation theorem — Karl Theodor Wilhelm Weierstrass
* Weissenberg effect — Karl Weissenberg
* Weston cell — Edward Weston
* Wheatstone bridge — Sir Charles Wheatstone (improved and popularized it; the inventor was Samuel Hunter Christie)
* Whittaker function, Whittaker integral, Whittaker model — E. T. Whittaker
* Whittaker–Shannon interpolation formula — E. T. Whittaker, J. M. Whittaker, Claude Shannon
* Widrow-Hoff rule — Bernard Widrow and Ted Hoff
* Wiedemann-Franz law — Gustav Wiedemann and Rudolf Franz
* Wien bridge (Wien's bridge), constant, effect, law — Wilhelm Wien
* Wiener filter, process — Norbert Wiener
* Wigmore chart — John Henry Wigmore
* Wigner energy, Wigner effect — Eugene Wigner
* Wigner-Seitz cell — Eugene Wigner and Frederick Seitz
* Willshaw network — David J. Willshaw
* Wilson cycle — John Tuzo Wilson
* Wilson effect (a.k.a. Schülen-Wilson effect) — Alexander Wilson (and ? Schülen)
* Wilson-Bappu effect — Olin Chaddock Wilson and Manali Kallat Vainu Bappu
* Wollaston prism — William Hyde Wollaston
* Woodward-Hoffmann rules — Robert Burns Woodward and Roald Hoffmann
* Woodward effect — James F. Woodward
* Wolf effect — Emil Wolf
* Wulf bands — Oliver R. Wulf

Y

* Yarkovsky effect — Ivan Osipovich Yarkovsky
* YORP effect — Ivan Osipovich Yarkovsky, John A. O'Keefe, V. V. Radzievskii, and Stephen J. Paddack
* Young diagram (a.k.a. Ferrers diagram), Young tableau — Alfred Young
* Young's modulus — Thomas Young

Z

* Zeeman effect — Pieter Zeeman
* Zener effect — Clarence Melvin Zener
* Zeno effect — Zeno of Elea
* Zipf's law — George K. Zipf

ee also

* Eponyms
* Fields of science
* List of eponymous medical signs
* List of scientists
* Lists of etymologies
* Scientific constants named after people
* Scientific laws named after people