William O'Brien (disambiguation)
From Wikipedia, the free encyclopedia
William O'Brien is the name of:
- Bill O'Brien (born 1929), English Labour MP for Normanton 1983–2005
- Bill O'Brien (actor)
- Bill O'Brien (American football) (born 1969), offensive assistant coach for the New England Patriots
- Parry O’Brien (1932–2007), American shot-put innovator
- William O'Brien (1852–1928), Irish journalist and politician
- William O'Brien, 4th Earl of Inchiquin, 9th Baron Inchiquin, founder of the Royal Cork Yacht Club
- William J. O'Brien (1836–1905), United States Representative from Maryland, 1873–1877
- William J. O'Brien, inventor of the Decca Navigator System
- William J. O'Brien (Medal of Honor recipient) (1899–1944), United States Army officer during World War II
- William J. O'Brien (artist), American artist
- William S. O'Brien (1825–1878), American businessman
- William Smith O'Brien (1803–1864), Irish revolutionary
- William Smith O'Brien (Congressman) (1862-1948), U.S. Representative from West Virginia
- William X. O'Brien (1881–1968), founder of the Irish Transport and General Workers' Union
- William O'Brien (Fine Gael) (1918–1994), Irish Fine Gael Senator and TD from County Limerick