Russell County is a historic county in the Canadian province of Ontario.
It was created in 1800 from a portion of Stormont County. It later merged with Prescott County to form Prescott and Russell United Counties.
Cumberland Township became part of the Regional Municipality of Ottawa-Carleton in 1969, and is now part of the single-tier city of Ottawa.
Coordinates: 45°25′N 75°10′W / 45.417°N 75.167°W