John O'Keefe
John O'Keefe or O'Keeffe may refer to:
Politics, government, and law
- John O'Keefe (Irish politician), Member of Parliament for Dungarvan, 1874–1877
- John O'Keefe (Australian politician), Queensland state MP
- John Martin O'Keefe, U.S. diplomat
- John J. O'Keefe, III, American police officer found dead outside a home in Canton, Massachusetts
Scientists
- John A. O'Keefe (astronomer), American planetary scientist
- John O'Keefe (neuroscientist), American British neuroscientist, 2014 Nobel Prize laureate in Physiology or Medicine
Sportspeople
- John O'Keeffe (Cork hurler), Irish hurler in the 1910s and 1920s
- John O'Keeffe (Gaelic footballer), Irish footballer who played for Kerry
- John O'Keeffe (Tipperary hurler), Irish hurler in the 2000s
- John O'Keeffe (Australian rules footballer), Australian rules footballer with Fitzroy
- John R. O'Keefe, Australian rules footballer with Carlton
- Jack O'Keefe, Australian rules footballer
Other people
- John O'Keeffe (writer), sometimes O'Keefe, Irish playwright
- John O'Keeffe (painter), Irish painter
- John O'Keefe (playwright), American playwright
- Johnny O'Keefe, Australian rock and roll singer