List of Chess Players - O

O

• Kevin O'Connell (England, Ireland, born 1949)
• Handszar Odeev (Turkmenistan, born 1972)
• Leif Øgaard (Norway, born 1952)
• John O'Hanlon (Ireland, 1876–1960)
• Tõnu Õim (Estonia, born 1941)
• Kaarle Ojanen (Finland, born 1918)
• Albéric O'Kelly de Galway (Belgium, 1911–1980)
• Friðrik Ólafsson (Iceland, born 1935)
• Helgi Ólafsson (Iceland, born 1956)
• Mikhailo Oleksienko (Ukraine, born 1986)
• Lembit Oll (Estonia, 1966–1999)
• Adolf Georg Olland (Netherlands, 1867–1933)
• Anton Olson (Sweden, 1881–after 1928)
• Alexander Onischuk (Ukraine, USA born 1975)
• Karel Opočensky (Czechoslovakia, 1892–1975)
• Wilhelm Orbach (Germany, 1894–1944)
• Menachem Oren (Poland, Israel, 1901–1962)
• Gerard Oskam (Netherlands, 1880–1952)
• Berge Ostenstad (Norway, born 1964)
• John Owen (England, 1827–1901)
• Karlis Ozols (Latvia, Australia, 1912–2001)