List of Famous people born in Ontario, Canada

Hans Robert Schöler is a molecular biologist and stem cell researcher. He is director at the Max Planck Institute for Molecular Biomedicine in Münster.

Glen Drover is a Canadian heavy metal guitarist from Ottawa, Ontario. He is best known as the former lead guitarist of Megadeth and King Diamond, along with his brother Shawn Drover who also performed with Megadeth.

Charles Jude Scicluna is a Canadian-Maltese prelate of the Catholic Church who has been the Archbishop of Malta since 2015. He held positions in the Roman Curia from 1995 to 2012, when he was appointed Auxiliary Bishop of Malta. Both as a curial official and since becoming a bishop he has conducted investigations into sexual abuse by clergy on behalf of the Holy See and led a board that reviews such cases. He has been called "the Vatican's most respected sex crimes expert". Since November 2018 he has also been Adjunct Secretary of the Congregation for the Doctrine of the Faith, the curial body responsible for dealing with clerical sexual abuse cases on minors around the world. Archbishop Scicluna was also appointed Grand Prior of the Equestrian Order of the Holy Sepulchre of Jerusalem, Lieutenancy of Malta on his appointment as Archbishop of Malta.

Megan Lukan is a Canadian multi-sport athlete. Lukan switched to rugby from basketball after graduating in May 2015 from the University of Wisconsin–Green Bay, where she was a four-year starting guard for the Green Bay women's Division l basketball team. During her UWGB basketball career, Lukan set a number of records included most career assists since the team became a member of the NCAA's Division I and most minutes played during a career. Lukan is a Canadian rugby union player, who was named to Canada's first ever women's rugby sevens Olympic team at the 2016 Summer Olympics. In 2018, she was selected by the Canadian Olympic Committee and was sponsored to attend Smith School of Business MBA program at Queen's University. Lukan's younger sister Kaili Lukan also played basketball at University of Wisconsin-Green Bay and is a current member of the Canada women's national rugby sevens team.

Edwin Eugene Lockhart was a Canadian American character actor, singer, and playwright. He also wrote the lyrics to a number of popular songs. He became a United States citizen in 1939.

Roberta Bondar is Canada's first female astronaut and the first neurologist in space. After more than a decade as head of an international space medicine research team collaborating with NASA, Bondar became a consultant and speaker in the business, scientific, and medical communities.

Helena C. Guergis, is a Canadian politician of Assyrian descent. She represented the Ontario riding of Simcoe—Grey in the House of Commons of Canada from 2004 to 2011, and was appointed Minister of State on October 30, 2008, following the October 14, 2008 Canadian federal election. Soon after starting her parliamentary career, she became involved in several controversial situations, and these increased with time in both number and severity.

Rosina May Lawrence was a British-Canadian actress and singer. She had a short but memorable career in the 1920s and 1930s in Hollywood before she married in 1939 and retired from entertainment.

Sheila Ann Martin is the wife of Paul Martin, who served as the 21st Prime Minister of Canada from December 12, 2003 to February 6, 2006. Her father was William "Bill" Cowan, a lawyer and philanthropist from Windsor, Ontario. She was named after her mother. Sheila was raised Protestant, and graduated from the University of Toronto in 1964.