Proterorhinus is a genus of fish in the Gobiidae family. This genus is represented by five species:
- Proterorhinus marmoratus (Pallas, 1814) - marine tubenose goby
- Proterorhinus nasalis (Filippi, 1863) - eastern tubenose goby
- Proterorhinus semilunaris Heckel, 1837 - western tubenose goby
- Proterorhinus semipellucidus Kessler, 1863 - Caspian tubenose goby
- Proterorhinus tataricus Freyhof and Naseka, 2007 - Chornaya tubenose goby
Two of these species inhabit the brackish waters of the Black Sea (Proterorhinus marmoratus) and the southern Caspian Sea (P. nasalis). The western (freshwater) tubenose goby P. semilunaris is native to the fresh waters of the Black Sea basin.