Peter Fonseca MP (born October 5, 1966) is a Portuguese-born Canadian politician and former athlete. He is a Liberal member of the House of Commons of Canada, representing the riding of Mississauga East—Cooksville since his election in 2015. Prior to entering federal politics, Fonseca was a provincial Liberal member of the Legislative Assembly of Ontario representing Mississauga East (2003-2007) and Mississauga East—Cooksville (2007- 2011). He was a cabinet minister in the government of Dalton McGuinty.