Robustichthys is an extinct genus of ray-finned fish from the Middle Triassic period, contains only one species R.

[1][2] It belonged to the clade Halecomorphi, which were once diverse during the Mesozoic Era, but which are today represented by only a single species, the bowfin.

Halecomorphs are holosteans, a clade which first appeared in the fossil record during the Triassic.

[3] Robustichthys is described from Anisian Guanling Formation, Luoping, Yunnan, China.

This article about a prehistoric ray-finned fish is a stub.