Rathbunella is a genus of marine ray-finned fishes belonging to the family Bathymasteridae, the ronquils.

Rathbunella was first proposed as a monotypic genus by the American ichthyologists David Starr Jordan and Barton Warren Evermann in 1896 with Bathymaster hypoplectus, which had been described by Charles Henry Gilbert from Southern California in 1890, as its type species.

[3] The genus name,Rathbunella honors Richard Rathbun, who was the chief of the Division of Scientific Inquiry in the United States Fish Commission, in recognition of his services to science.

[4] There are currently two recognized species in this genus:[5] Rathbunella ronquils are distinguished from other genera in the family Bathymasteridae by having the branchiostegal membranes being broadly united , free from isthmus, creating a thick fold.

[7] They are solitary, demersal fishes of shallow coastal waters in rocky areas.