Gilles Loiselle, PC OQ (20 May 1929 – 29 September 2022) was a Canadian politician.

Loiselle was born in Ville-Marie, Quebec on 20 May 1929. He worked as the correspondent for CBC News in Paris for a decade before being appointed the government of Quebec's agent-general in the United Kingdom in 1977.^[2] He represented Quebec to the British government when the federal government of Canada was negotiating the Patriation of the Constitution of Canada from Britain in the 1980s.

After being elected to the House of Commons of Canada in the 1988 federal election, Loiselle joined the cabinet of Brian Mulroney. In 1990, he was elevated to the post of President of the Treasury Board and, in 1993, he served as Minister of Finance in the short-lived government of Kim Campbell.

Loiselle, a Progressive Conservative, was defeated in the 1993 election. The Tories were cut down to two seats, and Loiselle himself fell to third place in the vote count in his constituency.

He was named to the National Order of Quebec in 2011.^[3]

He died in Montreal on 29 September 2022, aged 93.^[4][5]