皱唇鲨科（学名：Triakidae，又称平滑鲛科）是软骨鱼纲真鲨目的其中一科。

本科鲨鱼广泛分布于温带、热带各大洋海域。

Houndsharks, Triakidae, are a family of ground sharks, consisting of about 40 species in 9 genera. In some classifications, the family is split into two subfamilies, with Mustelus, Scylliogaleus, and Triakis in the subfamily Triakinae, and the remaining genera in the subfamily Galeorhininae.