Northern River (painting)

Northern River is a 1914–15 oil painting by Canadian painter Tom Thomson. The work was inspired by a sketch completed over the same winter, possibly in Algonquin Park. The completed canvas is large, measuring 115.1 × 102.0 cm.

Painted over the winter of 1914–15, it was completed in Thomson's shack behind the Studio Building in Toronto. The painting was produced as he was entering the peak of his short art career and is considered one of his most notable works. In 1915 it was purchased by the National Gallery of Canada in Ottawa and has remained in the collection ever since.