Cephalorhynchus is a genus in the Delphinidae (dolphin) family. It consists of four species
- Commerson's Dolphin, Cephalorhyncus commersonii
- Chilean Dolphin, Cephalorhyncus eutropia
- Heaviside's Dolphin, Cephalorhyncus heavisidii
- Hector's Dolphin, Cephalorhyncus hectori