Poplar River (Nipissing District)

The Poplar River is a river in the Unorganized North part of Nipissing District in northeastern Ontario, Canada. It is in the Great Lakes Basin.

The Poplar River begins at Poplar Lake in geographic Gladman Township and flows 2 km south to its mouth at Bear Lake in geographic Hammell Townwship. Bear Lake flows via Tilden Lake, the Tomiko River, the Sturgeon River, Lake Nipissing and the French River to Georgian Bay on Lake Huron.