Melanocharacidium is a fish genus in the family Crenuchidae (South American darters).

They are found in the Amazon, Orinoco and Araguaia basins, as well as river basins of the Guianas.

They are small fish, up to around 10 cm (4 in) in standard length.

[1] There are currently nine recognized species in this genus:[1]

This Characiformes-related article is a stub.