Gilles C. Bisson is a Franco-Ontarian politician in Ontario, Canada. He was a New Democratic member of the Legislative Assembly of Ontario from 1990 until his defeat in the 2022 Ontario general election. From 1999 to 2022 he represented the northern riding of Timmins.

The 1990 Ontario general election was held on September 6, 1990, to elect members of the 35th Legislative Assembly of the province of Ontario, Canada. The governing Ontario Liberal Party led by Premier David Peterson was unexpectedly defeated. Although the Peterson government, and Peterson himself, were very popular, he was accused of opportunism in calling an election just three years into his mandate. In a shocking upset, the New Democratic Party (NDP), led by Bob Rae, won a majority government. This marked the first time the NDP had won government east of Manitoba, and to date the only time the NDP formed the government in Ontario.