List of Famous people born in Ontario, Canada

Howard William Meeker was a Canadian professional hockey player in the National Hockey League, youth coach and educator in ice hockey, and a Progressive Conservative Member of Parliament. He became best known to Canadians as an excitable and enthusiastic television colour commentator for Hockey Night in Canada, breaking down strategy in between periods of games with early use of the telestrator.

Mackenzie Hughes is a Canadian professional golfer.

Raymond Hart Massey was a Canadian actor, known for his commanding, stage-trained voice. For his lead role in Abe Lincoln in Illinois (1940), Massey was nominated for the Academy Award for Best Actor. He also was well known for playing Dr. Gillespie in the NBC television series Dr. Kildare (1961–1966). Today, he is most often seen in the film Arsenic and Old Lace (1944), in his role as the malevolent Jonathan Brewster, who looks like Boris Karloff, and violently attacks anyone who mentions the resemblance.

Richard Edmund Williams was a Canadian–British animator, voice actor, director, and writer, best known for serving as animation director on Who Framed Roger Rabbit (1988), for which he won two Academy Awards, and for his unfinished feature film The Thief and the Cobbler (1993). He was also a film title sequence designer and animator. Other works in this field include the title sequences for What's New Pussycat? (1965) and A Funny Thing Happened on the Way to the Forum (1966) and title and linking sequences in The Charge of the Light Brigade and the intros of the eponymous cartoon feline for two of the later Pink Panther films. In 2002 he published The Animator's Survival Kit, an authoritative manual of animation methods and techniques, which has since been turned into a 16-DVD box set as well as an iOS app. From 2008 he worked as artist in residence at Aardman Animation in Bristol, and in 2015 he received both Oscar and BAFTA nominations in the best animated short category for his short film Prologue.

Laura Dianne Vandervoort is a Canadian actress. She is best known for her roles as Sadie Harrison in the CTV teen drama series Instant Star, Arla "The Bolt-Gun Killer" Cogan in the Syfy supernatural drama series Haven, Kara Zor-El (Supergirl) in The CW serial drama series Smallville, and as Lisa in the ABC science fiction series V (2009). In 2014, she starred in the Space drama series Bitten, a television adaptation of Kelley Armstrong's book series Women of the Otherworld as Elena Michaels.

Leo Joseph Boivin was a Canadian professional ice hockey defenceman and coach who played 19 seasons in the National Hockey League (NHL). He played for the Toronto Maple Leafs, Boston Bruins, Detroit Red Wings, Pittsburgh Penguins, and Minnesota North Stars from 1952 to 1970.

Kirsty Ellen Duncan is a Canadian politician and medical geographer from Ontario, Canada. Duncan is the Member of Parliament (MP) for the Toronto riding of Etobicoke North and Duncan serves as deputy leader of the government in the House of Commons. Duncan has previously served as minister of science and minister of sport and persons with disabilities. She has published a book about her 1998 expedition to uncover the cause of the 1918 Spanish flu epidemic.

Shamier Anderson is a Canadian actor. He is known for playing U.S. Deputy Marshal Xavier Dolls on the television series Wynonna Earp.

George Louis Chuvalo CM is a Canadian former professional boxer who was a five-time Canadian heavyweight champion and two-time world heavyweight title challenger. Chuvalo is known for having never been knocked down in his 93 bout professional career including fights against Muhammad Ali, Joe Frazier, and George Foreman. Chuvalo was inducted into the Ontario Sports Hall of Fame in 1995.

John Dyson Heydon is a former Australian judge and barrister who served on the High Court of Australia from 2003 to 2013 and the New South Wales Court of Appeal from 2000 to 2003, and previously served as Dean of the Sydney Law School. He retired from the bench at the constitutionally-mandated age of 70 and went on to chair the Royal Commission into Trade Union Governance and Corruption between 2014 and 2015.