Apex

Apex may refer to:

* Apex of the heart, the lowest superficial part of the heart
* Apex (mollusc), the tip of the spire of the shell of a gastropod
* Apex (headdress), a pointed piece of olive-wood, the base of which was surrounded with a lock of wool, worn by Roman priests
* Solar apex, the direction that our solar system travels through in our Galaxy
* Apex (radio band), an experimental very high frequency radio broadcasting system
* Apex (racing), the point a car should touch on the inside of a turn when following a proper line
* Apex (geometry), the highest vertex in a polyhedron or geometric solid
* Apex (diacritic) is a sign used by the Romans to mark long vowels
* Apex (botanical) is the Apical meristem or its remnant on a flower
* Apex predator

Apex is the name of:
* Apex, North Carolina, a town in the United States
* Apex (Niaqunngut), a community on Baffin Island, now part of Iqaluit, Nunavut, Canada
* Apex Digital, a California-based electronics manufacturer
* Apex Digest, a Kentucky-based science fiction magazine
* Apex Stores, a Rhode Island-based department store chain
* Apex Records (Canada), a record label of Compo Company
* Apex Theory, an alternative rock band.
* A supervillain on the TV show "Portal"
* Vympel R-23, an air-to-air missile (NATO reporting name "Apex")
* Apex (altitude physiology expeditions), a high altitude medical research charity.
* Apex Clubs of Australia, an association of young individuals, who seek to serve their local community and promote community spirit.

APEX may stand for:

* Asian Professional Exchange
* APEX system (Additive System of Photographic Exposure), a system of exposure calculation based on Ev units, or stops
* The Advanced Photovoltaic Experiment scientific research satellite.
* Atacama Pathfinder Experiment, a radioastronomical project in the high Andes in the north of Chile
* Association of Professional, Executive, Clerical and Computer Staff, a British Trade Union
* Oracle Application Express (APEX), a free Oracle software development system
* Arrayed Primer Extension (APEX), a genetic resequencing method for rapid identification of mutations