William Ross
William Ross may refer to:
Nobility
- William Ross, 8th Lord Ross, Scottish nobleman
- William Ross, 10th Lord Ross, Scottish nobleman
- William Ross, 12th Lord Ross, Scottish nobleman, soldier and politician
- William Ross, 14th Lord Ross, Scottish nobleman
Politics
- William Ross (New York politician), New York politician, speaker of the State Assembly 1814
- William H. H. Ross, American politician and governor of Delaware
- William Ross (Canadian politician), merchant, ship builder and politician in Nova Scotia, Canada
- William Ross (Ontario politician), merchant and politician in Ontario, Canada
- William Benjamin Ross, Canadian politician, lawyer and businessman
- William Roderick Ross, lawyer and politician in British Columbia, Canada
- William Donald Ross, financier, banker and lieutenant governor of Ontario
- William B. Ross, Governor of Wyoming
- William Henry Ross, provincial level politician from Alberta, Canada
- Bill Ross (Australian politician), member of the New South Wales Legislative Assembly
- William Gladstone Ross, lawyer, judge and politician in Saskatchewan, Canada
- Willie Ross, Baron Ross of Marnock, secretary of state for Scotland in the 1960s
- William Cecil Ross, leader of the Labour Progressive Party of Manitoba in 1945
- William Ross (Unionist politician), Ulster Unionist Party member of parliament until 2001
Sports
- William Ross (cricketer), Australian cricketer
- William Ross (footballer, born 1874), English professional footballer active in the 1890s
- William Ross (baseball), American Negro leagues baseball player
- William Ross (rower), Canadian Olympic rower
- William Alexander Ross, Scottish rugby player
- William Ross (footballer, born 1921), Scottish footballer
- William Ross (water polo), US water polo player who competed in the 1956 Summer Olympics
- Bill Ross (footballer), Australian rules footballer
- Bill Ross (rugby union), Australian rugby union player
- Eric Ross, Northern Irish footballer
Other fields
- William Ross (poet), Scottish Gaelic poet
- William Charles Ross, British artist
- William P. Ross, Principal Chief of the Cherokee Nation
- William Murray Ross, entrepreneur in Melbourne
- William Stewart Ross, Scottish writer and publisher
- W. D. Ross, British philosopher
- William Edward Daniel Ross, Canadian actor, playwright and bestselling writer
- William Ross (theatrical producer), State Managers Association, Actors' Equity Association
- William Ross (actor), Tokyo-based American actor, voice actor, voice director and editor, and the founder of Frontier Enterprises
- William Ross (composer), soundtrack composer
Fictional
- William Ross (Star Trek), a character in ''Star Trek''