The dusky sleeper or brown spinecheek gudgeon (Eleotris fusca) is a species of fish in the family Eleotridae found in many Indo-West Pacific regions, from the coast of eastern Africa to Hawaii, where it can be found in lagoons, estuaries, and freshwater streams with muddy bottoms.

The size of this species varies between 18cm (7 in) to 26 cm (10 in) in length.

[3][4] Its colour ranges from a greyish brown to a dark brown.

Brown spinecheek gudgeons feed on crustaceans, insects, and gastropods.

This Eleotridae-related article is a stub.