Guillaume Bastille (; born 21 July 1985) is a Canadian short-track speed skater from Rivière-du-Loup, Quebec who lives in Brossard.

He competed at the 2010 Winter Olympics in Vancouver in the men's 1,500 metre short track and the men's 5,000 metre relay competitions. On 26 February, he won a gold medal in the 5,000 m relay along with Charles Hamelin, François Hamelin, François-Louis Tremblay and Olivier Jean.

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