Prionolepis is a genus of prehistoric ray-finned fish belonging to the order Alepisauriformes.

These ray-finned fish lived in the Upper Cretaceous (Cenomanian - Turonian, about 95-90 million years ago).

Prionolepis could reach a length of about 25 centimetres (9.8 in).

Body was long and tapered, but rather strong and robust, with a series of high serrate scales (hence the name Prionolepis, from the Greek "saw scale").

His muzzle was pointed and very elongated, and jaw was slightly prognathous.