Kormak is an unincorporated area and ghost town in the Unorganized North Part of Sudbury District in Northeastern Ontario, Canada. Formerly a lumber mill town with an estimated population of 170 at its peak, the town was established in 1942 by Charles Korpela and Oscar Maki. It was populated primarily by Finnish and Franco-Ontarian workers and their families. A post office, a company store and a school were established at Kormak in the 1940s. One home at Kormak is still occupied year-round, while two others are in use as seasonal cottage properties.