Rheoheros is a genus of cichlids.

These freshwater fish are found in the Atlantic slope of Mexico and Guatemala in moderately to fast-flowing waters of the Grijalva-Usumacinta River system.

[1] Depending on species, they reach up to 12–25 cm (4.5–10 in) in length.

[3] There are currently 2 recognized species in this genus:[1][3]

This Cichlidae-related article is a stub.