Rossport is a dispersed rural community and unincorporated place in the Unorganized part of Thunder Bay District in northwestern Ontario, Canada. It is on the north shore of Lake Superior in geographic Lahontan Township, and is on Ontario Highway 17. Rossport is a designated place served by a local services board, and has a population of 65.

Unorganized Thunder Bay District is an unorganized area in northwestern Ontario, Canada in Thunder Bay District. It comprises all parts of the district that are not part of an incorporated municipality or a First Nations reserve.