List of Famous people born in Ontario, Canada

Robert Keith Rae is a Canadian diplomat, lawyer, negotiator, public speaker, and former politician at both the federal and provincial level, the latter of which included a term as Premier of Ontario. On July 6, 2020, his appointment as Canadian Ambassador to the United Nations was announced by Prime Minister Justin Trudeau.

Patrick O'Sullivan is a Canadian-born American former professional ice hockey forward who played in the National Hockey League (NHL) for the Los Angeles Kings, Edmonton Oilers, Carolina Hurricanes, Minnesota Wild and Phoenix Coyotes.

Tammy Lyn Homolka was the younger sister and victim of Canadian murderer Karla Homolka and her partner, Paul Bernardo. On 24 December 1990, less than two weeks before Tammy's 16th birthday, Karla Homolka and her fiancé Bernardo plied Tammy with alcoholic drinks laced with the sedative Halcion. When she became unconscious, the two raped her. Tammy became sick while sedated and died. After failed attempts to revive her, Karla covered up evidence of the assault and called an ambulance. Her official cause of death was listed as choking to death on her own vomit, and was believed at the time to have been an accident. After Paul Bernardo and Karla Homolka were arrested for the murders of Leslie Mahaffy and Kristen French, Tammy Homolka's body was exhumed. She is interred at Victoria Lawn Cemetery in St. Catharines, Ontario.

Mark Steyn is a Canadian conservative author and commentator. He has written several books, including the New York Times bestsellers America Alone: The End of the World As We Know It and After America: Get Ready for Armageddon. He has guest-hosted the nationally syndicated Rush Limbaugh Show, as well as Tucker Carlson Tonight on Fox News, on which he regularly appears as a guest and fill-in host when Tucker Carlson is away.

Melyssa Savannah Ford is a Canadian media personality, actress, and former video vixen. She attended York University and studied in the field of forensic psychology. Ford's father is Afro-Barbadian and her mother is Russian and Norwegian. She is often referred to as Jessica Rabbit, an animated character whose sensuous figure Ford's is said to resemble.

Raphael Torres is a Canadian former professional ice hockey left winger. He was drafted by the New York Islanders fifth overall in the 2000 NHL Entry Draft. He played in the National Hockey League (NHL) for the New York Islanders, Edmonton Oilers, Columbus Blue Jackets, Buffalo Sabres, Vancouver Canucks, Phoenix Coyotes and San Jose Sharks.

Suroosh Alvi is a Pakistani-Canadian journalist and filmmaker. He is the co-founder of Vice Media, a youth media brand operating in more than 50 countries. Alvi is a travelled journalist and an executive producer of film, covering global youth culture, news, and music. He has hosted and produced award-winning documentaries investigating controversial issues, movements, and subcultures, including conflict minerals in the Congo, the Iraq War, and the rise of the Pakistani Taliban and global terrorism.

William Grenville Davis, is a Canadian former politician who served as the 18th Premier of Ontario from 1971 to 1985. Davis was first elected as the MPP for Peel in the 1959 provincial election where he was a backbencher in Leslie Frost's government. Under John Robarts, he was minister of education. He succeeded Robarts as Premier of Ontario and held the position until resigning in 1985.

Paul D. Ranger is a Canadian former professional ice hockey defenceman who is currently an assistant coach with the UOIT Ridgebacks. He has spent the majority of his professional career with the Tampa Bay Lightning of the National Hockey League before leaving the sport at the professional level for almost three years due to severe depression. Ranger returned to professional hockey at the American Hockey League with the Toronto Marlies during the 2012–13 season, and subsequently signed a one-year contract with the Toronto Maple Leafs on July 24, 2013, to return to the NHL.

James Michael Gregory was a Canadian professional ice hockey coach and executive. Born in Port Colborne, Ontario and raised in Dunnville, Ontario, Gregory attended St. Michael's College School in Toronto where he became involved with the school's ice hockey teams, first as a trainer, eventually moving to management and coaching positions. He went on to coach and manage the Toronto Marlboros, winning two championships. He then moved to the National Hockey League's (NHL) Toronto Maple Leafs, serving as their general manager. He led the team to eight playoff appearances during his ten-year tenure. He then moved to the NHL head offices, becoming the director of central scouting, and later took a directorship position in the hockey operations department, which he held until his death.