Small-mouthed Wrasse
Centrolabrus exoletus
- Least concern
- Card rarity: Common
- Fish

The rock cook, or small-mouthed wrasse, is a species of marine ray-finned fish from the wrasse family Labridae which is found in the eastern Atlantic Ocean off the coasts of Europe.
Classification
- Class
- Actinopterygii
- Order
- Labriformes
- Family
- Labridae
- Genus
- Centrolabrus