William Kennedy may refer to:
Politics and law
edit- William Kennedy (North Carolina politician) (1768–1834), U.S. Congressman from North Carolina
- William Kennedy (New Jersey politician) (1775–1826), American politician, acting governor of New Jersey
- William Kennedy (Montana politician) (1835–1904), miner, restaurant and hotel proprietor, 8th mayor of Missoula, Montana
- William Kennedy (Wisconsin politician) (1841–1910), American lawyer and legislator
- William Kennedy (Connecticut politician) (1854–1918), United States congressman from Connecticut
- William Nassau Kennedy (1839–1885), Manitoba politician, mayor of Winnipeg
- William James Kennedy (politician) (1857–1912), Manitoba politician
- William Walker Kennedy (1882–1963), Manitoba politician and lawyer
- William Farris Kennedy (1888–1951), British Columbia politician
- William Costello Kennedy (1868–1923), Canadian businessman and politician
- William Rann Kennedy (1846–1915), British jurist and Lord Justice of Appeal, classical scholar
- William Francis Kennedy (died 1874), member of the Queensland Legislative Assembly
- William H. Kennedy III (active since 1993), American lawyer and associate counsel to president Clinton
Arts and entertainment
edit- William Kennedy (author) (born 1928), American Pulitzer-winning novelist
- William Stetson Kennedy (1916–2011), American author and civil rights activist
- William Kennedy (poet) (1799–1871), Scottish poet, journalist, and diplomat
- William Kennedy (painter) (1859–1918), Scottish painter
- William Denholm Kennedy (1813–1865), Scottish historical, genre and landscape painter
- William Kennedy (drummer), drummer for Yellowjackets
Other
edit- William Kennedy (explorer) (1814–1890), Canadian sailor and searcher for John Franklin
- William Kennedy (Royal Navy officer) (1838–1916), British admiral
- William Clark-Kennedy (1879–1961), Canadian serviceman and recipient of the Victoria Cross
- William Quarrier Kennedy (1903–1979), British geologist
- William James Kennedy (active since 1990), British geologist
- William Kennedy Smith (born 1960), American physician and member of the Kennedy family
- William John Kennedy (1919–2005), activist for the rights of Australian Aborigines
- William Parker Kennedy (1892–1968), president of the Brotherhood of Railroad Trainmen (BRT) from 1949 to 1962
- William Kennedy (Scottish footballer) (fl. 1890s)
- William Kennedy (footballer, born 1890) (1890–1915), English footballer
- William Kennedy (coach), Scottish footballer
- William Kennedy (athlete) (1898–?), Canadian Olympic athlete
- William Kennedy (runner) (born 1884), American marathoner, 3rd at the 1927 USA Outdoor Track and Field Championships
- William Kennedy (cricketer) (1853-1889), New Zealand cricketer
- William Kennedy (rugby league, born 1969), Australian rugby league player
- William Kennedy (rugby league, born 1997), Australian rugby league player
- William Kennedy (priest) (died 1940), Anglican priest in Ireland
- W. P. M. Kennedy (William Paul McClure Kennedy, 1879–1963), Canadian historian and legal scholar