Guy St-Julien (born February 19, 1940) is a Canadian politician. He is a former director of human resources and a senior clerk. St-Julien was born in Val-d'Or, Quebec.

St-Julien was a member of the Liberal Party of Canada in the House of Commons of Canada, representing the riding of Abitibi—Baie-James—Nunavik from 2000 to 2004, and Abitibi as a Liberal from 1997 to 2000 and as a Progressive Conservative from 1984 to 1993.

He lost his seat (now called Nunavik—Eeyou) in the 2004 election to Bloc Québécois candidate Yvon Lévesque.

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Parliament of Canada
Preceded by Member of Parliament for Abitibi
1984–1993
Succeeded by
Preceded by Member of Parliament for Abitibi
1997–2000
Succeeded by
The electoral district changed name to Abitibi—Baie-James—Nunavik in 1998.
Preceded by
The electoral district changed name from Abitibi to Abitibi—Baie-James—Nunavik in 1998.
Member of Parliament for Abitibi—Baie-James—Nunavik
2000–2004
Succeeded by
The electoral district was abolished in 2003.