John Keenan
John Keenan may refer to:
- John F. Keenan, United States federal judge in New York
- John Keenan (bishop), Bishop of Paisley, Scotland
- John Keenan (Gaelic footballer), Irish retired sportsperson
- John Keenan (Medal of Honor), United States Army soldier during the Indian Wars
- John D. Keenan, member of the Massachusetts House of Representatives
- John F. Keenan (politician), member of the Massachusetts Senate
- John R. Keennan, baseball scout for the Los Angeles Dodgers club
Others
- John Keenan (Holby Blue), fictional character in the British television series ''Holby Blue''