William Kennedy
William Kennedy may refer to:
Arts and entertainment
- William Kennedy (author), American Pulitzer-winning novelist
- William Stetson Kennedy, American author and civil rights activist
- William Kennedy (poet), Scottish poet, journalist, and diplomat
- William Kennedy (painter), Scottish painter
- William Denholm Kennedy, Scottish historical, genre and landscape painter
- William Kennedy (drummer), drummer for Yellowjackets
Politics and law
- William Kennedy (North Carolina politician), U.S. Congressman from North Carolina
- William Kennedy (New Jersey politician), American politician, acting governor of New Jersey
- William Kennedy (Montana politician), miner, restaurant and hotel proprietor, 8th mayor of Missoula, Montana
- William Kennedy (Wisconsin politician), American lawyer and legislator
- William Kennedy (Connecticut politician), United States congressman from Connecticut
- William Nassau Kennedy, Manitoba politician, mayor of Winnipeg
- William James Kennedy (politician), Manitoba politician
- William Walker Kennedy, Manitoba politician and lawyer
- William Farris Kennedy, British Columbia politician
- William Costello Kennedy, Canadian businessman and politician
- William Rann Kennedy, British jurist and Lord Justice of Appeal, classical scholar
- William Francis Kennedy, member of the Queensland Legislative Assembly
- William H. Kennedy III, American lawyer and associate counsel to president Clinton
Sports
- William Kennedy (Scottish footballer)
- William Kennedy (footballer, born 1890), English footballer
- William Kennedy (coach), Scottish footballer
- William Kennedy (high jumper), Canadian Olympic athlete
- William Kennedy (runner), American marathoner, 3rd at the 1927 USA Outdoor Track and Field Championships
- William Kennedy (cricketer), New Zealand cricketer
- William Kennedy (rugby league, born 1969), Australian rugby league player
- William Kennedy (rugby league, born 1997), Australian rugby league player
Other
- William Kennedy (explorer), Canadian sailor and searcher for John Franklin
- William Kennedy (Royal Navy officer), British admiral
- William Clark-Kennedy, Canadian serviceman and recipient of the Victoria Cross
- William Quarrier Kennedy, British geologist
- William James Kennedy, British geologist
- William Kennedy Smith, American physician and member of the Kennedy family
- William John Kennedy, activist for the rights of Australian Aborigines
- William Parker Kennedy, president of the Brotherhood of Railroad Trainmen from 1949 to 1962
- William Kennedy (priest), Anglican priest in Ireland
- W. P. M. Kennedy, Canadian historian and legal scholar