Waterhen River (Manitoba)

The Waterhen River (French : Rivière de la Poule d'Eau) is a river of Manitoba, Canada. It is the primary outflow for Lake Winnipegosis and flows into Lake Manitoba.

From Long Island Bay at the southeast end of the Lake Winnipegosis the West Waterhen and Little Waterhen rivers flow north about 16 km into Waterhen Lake then the Waterhen River flows south 22 km into Lake Manitoba.