Fort Crevier is a French fort built near the Saint-François River in Quebec.In 1687, near Saint-François-du-Lac, this fort was built by Jean Crevier. It was also known as Fort Saint-François. The fort's purpose was to defend the French inhabitants in the region against Iroquois attacks encouraged by the British. It was attacked by the Iroquois in November 1689, and again in August 1693, when Crevier was killed.