List of Famous people born in Ontario, Canada

Christina Cox is a Canadian film and television actress and stuntwoman.

Alice Ann Munro is a Canadian short story writer who won the Nobel Prize in Literature in 2013. Munro's work has been described as having revolutionized the architecture of short stories, especially in its tendency to move forward and backward in time. Her stories have been said to "embed more than announce, reveal more than parade."

Peter Outerbridge is a Canadian actor, best known for his role as Ari Tasarov in the CW action series Nikita, Dr. David Sandström in the TMN series ReGenesis, Henrik "Hank" Johanssen in Orphan Black, Bob Corbett in Bomb Girls, William Easton in Saw VI, and George Brown in the television film John A.: Birth of a Country. He also played the lead role of Detective William Murdoch in a three-episode mini-series, The Murdoch Mysteries, in its initial run on Canadian television, with two episodes shown in 2004 and a third in 2005.

Theofilos Xenidis, better known as Phil X, is a Canadian musician and songwriter. Since 2011, he has played lead guitar with Bon Jovi and officially replaced former lead guitarist Richie Sambora in 2016.

Manfred Wolf is a German ice hockey player. He competed in the men's tournaments at the 1984 Winter Olympics and the 1988 Winter Olympics.

Sarina Paris is a Canadian singer and songwriter, best known for her international dance-club hits "Look at Us" (2000) and "Just About Enough" (2001).

Marc Séguin is a French Canadian painter and novelist whose work is held in several important collections.

Thomas Graeme Cameron Gibson was a Canadian novelist. He was a Member of the Order of Canada (1992), a Senior Fellow of Massey College and one of the organizers of the Writers Union of Canada. He was also a founder of the Writers' Trust of Canada, a non-profit literary organization that seeks to encourage Canada's writing community.

John George Diefenbaker was the 13th prime minister of Canada, serving from 1957 to 1963. Between 1930 and 1979, he was the only federal Progressive Conservative leader to lead the party to an election victory, doing so three times, although only once with a majority of seats in the House of Commons of Canada.

Peter Polansky is a Canadian professional tennis player of Czech origin. He was Canada's top singles player from June 21, 2010 until January 17, 2011 in the ATP rankings. He was also Canada's No. 2 from August 4, 2008 until June 21, 2010, with the exception of one week. In 2018, he became the first player in the Open Era to qualify for all four Grand Slam tournaments as a lucky loser within the same calendar year.