List of Famous people born in Ontario, Canada

Steven Glenwood MacLean is a Canadian astronaut. He was the President of the Canadian Space Agency, from September 1, 2008 to February 1, 2013.

Frank Stuart Miller,, was a Canadian politician, who served as the 19th Premier of Ontario for four months in 1985. He was elected to the Legislative Assembly of Ontario in 1971 as a Progressive Conservative member of the central Ontario riding of Muskoka. He served in the cabinet of Premier Bill Davis in several portfolios including Minister of Health and Minister of Natural Resources. He also served five years as the Treasurer of Ontario.

Lieutenant General Sir Arthur Edward Grasett was a British-Canadian soldier who served with the British Army in Canada, England, India and China.

John Stanley Plaskett was a Canadian astronomer.

Cynthia Ciurluini, known professionally as Cynthia Dale, is a Canadian television actress and stage performer. She is best known for her role as lawyer Olivia Novak in the 1987–94, and re-booted in 2019, television drama Street Legal.

Richard Brent Tully is an astronomer at the Institute for Astronomy in Honolulu, Hawaii.

Robert Murray Gordon "Rob" McConnell, was a Canadian jazz trombonist, composer, and arranger. McConnell is best known for establishing and leading the big band The Boss Brass, which he directed from 1967 to 1999.

Denise Cronenberg was a Canadian costume designer.

John Franklin Candy was a Canadian actor and comedian known mainly for his work in Hollywood films. Candy rose to fame as a member of the Toronto branch of the Second City and its Second City Television (SCTV) series, and through his appearances in comedy films, including Stripes, Splash, Cool Runnings, Summer Rental, The Great Outdoors, Spaceballs, and Uncle Buck, as well as more dramatic roles in Only the Lonely and JFK. One of his most renowned onscreen performances was as Del Griffith, the talkative shower-curtain ring salesman in the John Hughes comedy Planes, Trains and Automobiles. In addition to his work as an actor, Candy was a co-owner of the Toronto Argonauts of the Canadian Football League from 1991 until his death, and the team won the 1991 Grey Cup under his ownership. Candy died of a heart attack in 1994 at the age of 43. His final two films, Wagons East and Canadian Bacon, are dedicated to his memory.