List of Famous people born in Ontario, Canada

Andrew Neil MacNaughtan was a Canadian photographer and music video director.

Daniel Peter Quinn is a Canadian professional golfer and former professional ice hockey player. Quinn played 14 seasons in the National Hockey League (NHL). Quinn was born in Ottawa, Ontario, but grew up in Brockville, Ontario.

Kelly Sheridan is a Canadian voice actress best known for being the voice for Barbie in the Barbie film series from 2001 to 2010 and from 2012 to 2015. She had also voiced in numerous animations and English-language dubs of Japanese animations, including as Sango in the English dub of the Inuyasha, Diana Lombard in Martin Mystery, Theresa in Class of the Titans and Starlight Glimmer in My Little Pony: Friendship is Magic. She has been a member of Genus Theatre Company since August 2005.

Daniel Petronijevic is a Canadian actor who has appeared in various feature films, including the American Pie franchise, and in TV shows such as 19-2, Playmakers, Cardinal, and Letterkenny. He also has extensive experience doing voice acting for numerous animated series. His most recent acting role was playing detective Marv Bozwick in the film Spiral.

William Donald Dennison was a Canadian social-democratic politician that served in both the Ontario Legislative Assembly and finally as the City of Toronto's mayor. He served two nonconsecutive terms as a Member of Provincial Parliament (MPP) in the 1940s and early 1950s. After his provincial-level career, he focused on Toronto's municipal politics, holding offices as an alderman, member of the Toronto Board of Control, and finally as the city's mayor. He was the mayor from 1967 to 1972, winning two consecutive three-year terms. Prior to entering politics, he was a school principal and teacher. As of 2020 he was the last mayor of Toronto to be a member of the Orange Order.

Kyle Schmid is a Canadian actor, best known for his roles as Alex Caulder in History's Six, Henry Durham in Syfy's Being Human, Robert Morehouse in BBC America's Copper and Aaron Abbot in The Covenant (2006). Recently, he starred as Moses in the Netflix science fiction miniseries The I-Land.

Robert Chiarelli is a former politician in Ontario, Canada. He was a Liberal member in the Legislative Assembly of Ontario who served from 1987 to 1997 and again from 2010 to 2018 who represented the ridings of Ottawa West and Ottawa West—Nepean. He was the Regional Chair of Ottawa-Carleton from 1997 to 2001 and was mayor of Ottawa from 2001 to 2006. He served in the provincial cabinets of Dalton McGuinty and Kathleen Wynne.

David Berry is an Australian actor known for his role as James Bligh in the television series A Place To Call Home and Lord John Grey in the Starz television series Outlander.

William Ross Macdonald,, served as the 21st Lieutenant Governor of Ontario from 1968 to 1974, and as 22nd Speaker of the House of Commons of Canada from 1949 to 1953.