List of Famous people born in Ontario, Canada

Malcolm-Jamaal Justin Subban is a Canadian ice hockey goaltender for the Chicago Blackhawks of the National Hockey League (NHL). Subban was selected by the Boston Bruins in the first round of the 2012 NHL Entry Draft. He played junior hockey in the Ontario Hockey League with the Belleville Bulls.

Louis Dennis DeBrusk is a Canadian former professional ice hockey player, and currently one of the main colour analysts on the late game of Hockey Night in Canada. DeBrusk played 401 National Hockey League (NHL) games with the Edmonton Oilers, Tampa Bay Lightning, Phoenix Coyotes and Chicago Blackhawks after being drafted from the London Knights. DeBrusk was raised in Port Elgin, Ontario and played junior hockey with the Port Elgin Bears and Stratford Cullitons before joining the Knights. DeBrusk was renowned for his fighting skills and racked up 1161 penalty minutes over the course of his career.

Michael Richard Weir, is a Canadian professional golfer who plays on the PGA Tour. He spent over 110 weeks in the top-10 of the Official World Golf Ranking between 2001 and 2005. He plays golf left-handed and is best known for winning the Masters Tournament in 2003, making him the only Canadian man to ever win a major.

Kylie Jacqueline Masse is a Canadian competition swimmer who specializes in the backstroke. She is a two-time Olympic medalist, having tied for the bronze medal at the 2016 Summer Olympics in 100 m backstroke and then won the silver medal at the 2020 Summer Olympics. Masse is the current world champion in the 100 m backstroke, breaking the eight year old world record in the process, which she held until July 2018. While winning her title in Budapest at the 2017 World Aquatics Championships she became the first Canadian woman to become a world champion in a swimming event. She subsequently became the first Canadian woman to defend her world title at the 2019 World Aquatics Championships. She's currently the captain for the Toronto Titans of the International Swimming League.

Brooke D'Orsay is a Canadian actress, best known for voicing the character of Caitlin Cooke on the Teletoon animated series, 6teen (2004–2010) and Brooke Mayo in the 2005 movie, King's Ransom.

James Bacque was a Canadian writer, publisher, and book editor. He was born in Toronto, Ontario.

David Jeffrey Frum is a Canadian-American political commentator and a former speechwriter for President George W. Bush, who is currently a senior editor at The Atlantic as well as an MSNBC contributor. In 2003, Frum authored the first book about Bush's presidency written by a former member of the administration. He has taken credit for inspiring the phrase "axis of evil" in Bush's 2002 State of the Union address.

Naheed Kurban Nenshi is a Canadian politician who is the 36th mayor of Calgary, Alberta. He was elected in the 2010 municipal election with 39% of the vote, and is the first Muslim mayor of a large North American city. He was re-elected in 2013 with 74% of the vote. He was again re-elected in 2017 to a third term with 51% of the vote.

Stephen Henry Lewis is a Canadian politician, public speaker, broadcaster and diplomat. He was the leader of the social democratic Ontario New Democratic Party for most of the 1970s.

Frederic William Stanfield was a Canadian professional ice hockey centre who played 14 seasons in the National Hockey League from 1964 until 1978. He won two Stanley Cups with the Boston Bruins, in 1970 and 1972. He was known as a clean player, as only once did he receive more than 14 penalty minutes in any season of his professional career.