The Croker River is a waterway above the Arctic Circle on the mainland of Northern Canada in the western Kitikmeot Region, Nunavut.

It originates at Bluenose Lake then flows northward.

It passes through a dolomite box canyon 8.0 km (5 mi) from the coast, before reaching a triangular shaped delta 24 km (15 mi) west of Clifton Point 69°13′N 118°38′W / 69.217°N 118.633°W / 69.217; -118.633 (Clifton Point (Croker River))[3], and then entering Amundsen Gulf's Dolphin and Union Strait.

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