Mathematicians
O
O'Rourke, Joseph
Obreshkov, Nikola (1896 - 1963)
Ockendon, John
Ocone, Daniel
Odifreddi, Piergiorgio (1950)
Odlyzko, Andrew
Odoardo, Juan Manuel Cajigal y
Oenopides (490s BC)
Oesterlé, Joseph
Offord, Cyril (1906 - 2000)
Ofman, Yuri Petrovich
Ogburn, William Fielding (1886 - 1959)
Ogirko, Igor (1952)
Ohm, Martin (1792 - 1872)
Oka, Kiyoshi (1901 - 1978)
Okamura, Hiroshi (1905 - 1948)
Okounkov, Andrei (1969)
Oldroyd, James G. (1921 - 1982)
O
Olearius, Adam (1603 - 1671)
Oleinik, Olga Arsenievna (1925 - 2001)
Ollerenshaw, Kathleen (1912)
Olszewski, Karol (1846 - 1915)
Olum, Paul (1918 - 2001)
Omladic, Matjaž (1950)
Onicescu, Octav (1892 - 1983)
Ono, Ken
Oommen, John (1953)
Oppenheim, Alexander (1903 - 1997)
Oppitz, Volker (1931)
Oppolzer, Theodor von (1841 - 1886)
Ore, Øystein (1899 - 1968)
Oren, Menachem (1901 - 1962)
Oresme, Nicole (1323 - 1382)
Orlicz, Wladyslaw (1903 - 1990)
Ornstein, Donald Samuel
Orr, William McFadden (1866 - 1934)
O
Orrell, David
Orszag, Steven A. (1943)
Osgood, William Fogg (1864 - 1943)
Osher, Stanley (1942)
Osipov, Yury (1936)
Osipovsky, Timofei Fedorovic (1765 - 1832)
Osserman, Robert
Ostrogradsky, Mikhail Vasilievich (1801 - 1862)
Ostrowski, Alexander (1893 - 1986)
Otho, Valentinus (? - 1603)
Ottlik, Géza (1912 - 1990)
Otto, Felix (1966)
Oughtred, William (1575 - 1660)
Overbeek, Ross
Owen, Guillermo (1938)
Owen, Henry (1716 - 1795)
Ozanam, Jacques (1640 - 1717)
Ozsváth, Peter