Fort Frances is a town in, and the seat of, Rainy River District in Northwestern Ontario, Canada. The population as of the 2021 census was 7,466 Fort Frances is a popular fishing destination. It hosts the annual Fort Frances Canadian Bass Championship.

Rainy River District is a district and census division in Northwestern Ontario in the Canadian province of Ontario. It was created in 1885. It is the only division in Ontario that lies completely in the Central Time Zone, except for the township of Atikokan observing Eastern Standard Time for part of the year. Its seat is Fort Frances. It is known for its fishing and its location on the US border opposite International Falls, Minnesota, and Baudette, Minnesota.