List of mathematicians (O)

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O

* O'Rourke, Joseph (?, ? - )
* Obreshkov, Nikola (?, 1896 - 1963)
* Ockendon, John (Britain, ? - )
* Odifreddi, Piergiorgio (Italy, 1950 - )
* Odlyzko, Andrew (USA, ? - )
* y Odoardo, Juan Manuel Cajigal (?, ? - )
* Oenopides (Ancient Greece, 490s BC - )
* Oesterlé, Joseph (?, ? - )
* Offord, Cyril (?, ? - )
* Ogburn, William Fielding (USA, 1886 - 1959)
* Ohm, Martin (Germany, 1792 - 1872)
* Oka, Kiyoshi (Japan, 1901 - 1978)
* Okamura, Hiroshi (Japan, 1905 - 1948)
* Okounkov, Andrei (Russia, 1969 - )
* Øksendal, Bernt (Norway, 1945 - )
* Oldroyd, James G. (Britain, 1921 - 1982)
* Olearius, Adam (Germany, 1603 - 1671)
* Oleinik, Olga Arsenievna (Soviet Union, 1925 - 2001)
* Ollerenshaw, Kathleen (Britain, 1912 - )
* Olszewski, Karol (Poland, 1846 - 1915)
* Olum, Paul (USA, 1918 - 2001)
* Omladič, Matjaž (Slovenia, 1950 - )
* Onicescu, Octav (Romania, 1892 - 1983)
* Ono, Ken (USA, ? - )
* Oommen, John (?, 1953 - )
* Oppenheim, Alexander (Britain, 1903 - 1997)
* Oppitz, Volker (Germany, 1931 - )
* von Oppolzer, Theodor (Austria, 1841 - 1886)
* Ore, Øystein (Norway, 1899 - 1968)
* Oren, Menachem (Israel, 1901 - 1962)
* Oresme, Nicole (?, 1323 - 1382)

Orl

* Orlicz, Władysław (Poland, 1903 - 1990)
* Ornstein, Donald Samuel (USA, ? - )
* Orr, William McFadden (Ireland, 1866 - 1934)
* Orrell, David (Canada, ? - )
* Orszag, Steven A. (USA, ? - )
* Osher, Stanley (USA, 1942 - )
* Osipov, Yury (Soviet Union/Russia, 1936 - )
* Osipovsky, Timofei Fedorovic (Russia, 1765 - 1832)
* Osserman, Robert (USA, ? - )
* Ostrogradsky, Mikhail Vasilievich (Ukraine/Russia, 1801 - 1862)
* Ostrowski, Alexander (?, 1893 - 1986)
* Otho, Valentinus (Germany, ? - 1603)
* Ottlik, Géza (Hungary, 1912 - 1990)
* Otto, Felix (Germany, 1966 - )
* Oughtred, William (England, 1575 - 1660)
* Overbeek, Ross (USA, ? - )
* Owen, Guillermo (Colombia, 1938 - )
* Owen, Henry (Wales, 1716 - 1795)
* Ozanam, Jacques (France, 1640 - 1717)
* Ozsváth, Peter (USA, ? - )