Windham is a town in Windham County, Connecticut,  United States. It contains the village of Willimantic as well as the villages of Windham Center, North Windham, and South Windham. Willimantic, an incorporated city since 1893, was consolidated with the town in 1983. The population was 23,733 in 2009 and 22,857 at the 2000 census.