Calotomus is a parrotfish genus from the Indo-Pacific, with a single species ranging into the warmer parts of the east Pacific. Compared to most of their relatives, their colours are relatively dull. Several species in this genus are associated with sea grass beds, but most can also be seen at reefs.

The genus includes these extant species:

The fossil species, †Calotomus preisli Bellwood & Schultz, 1991 has been recovered from middle Miocene beds from Austria, suggesting the Paratethys Sea might have been tropical.