Y. macrocephalus Yelangichthys is an extinct genus of prehistoric bony fish that lived during the Anisian age of the Middle Triassic epoch in what is now Guizhou, China.

[2] The type and only species, Y. macrocephalus, is known from two specimens, both of which were recovered from the Upper Member of the Guanling Formation.

[2] Phylogenetic analysis places Yelangichthys as a basal member of the Saurichthyiformes.

It is distinguished from other saurichthyiforms most notably by its broad skull and crushing dentition.

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