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

[1] It is in the Great Lakes Basin.

The Poplar River begins at Poplar Lake in geographic Gladman Township[2] and flows 2 kilometres (1.2 mi) south to its mouth at Bear Lake in geographic Hammell Townwship.

[3] Bear Lake flows via Tilden Lake, the Tomiko River, the Sturgeon River, Lake Nipissing and the French River to Georgian Bay on Lake Huron.

This article related to a river in Northern Ontario, Canada is a stub.