Willington Common Historic District is a historic district that includes the town green, Willington Common, of the town of Willington, Connecticut. The common and the surrounding buildings were listed on the National Register of Historic Places in 1990. The district is located at the junction of Route 74 and Route 320, on the location now known as Willington Hill, which is the original settlement and town center of Willington. The Green is rectangular and is bounded by Route 74 on the south, Jared Sparks Road on the east and Common Road on the north and west.