The taxon name Colymbus may refer to:
- Colymbus Linnaeus, 1758 [suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy. Opinion 401]
- Colymbus Paetel, 1875 (junior homonym)
- Colymbus Hadding, 1913 (junior homonym)