Conneaut Creek is a 43.5 mi tributary of Lake Erie in northwestern Pennsylvania and northeastern Ohio in the United States. Via Lake Erie, the Niagara River and Lake Ontario, it is part of the watershed of the St. Lawrence River, which flows to the Atlantic Ocean. Conneaut Creek rises in western Crawford County, Pennsylvania, and initially flows north-northwestwardly past Conneautville into western Erie County. Near Albion, it turns to the west-southwest and roughly parallels the shoreline of Lake Erie for some length, at a distance of about 5 mi (8 km) inland, into northeastern Ashtabula County, Ohio, where, at Kingsville, it turns to the northeast to flow into Lake Erie at the city of Conneaut.

Variant names and spellings

According to the Geographic Names Information System, Conneaut Creek has also been known historically as: