Diamond Blenny
Malacoctenus boehlkei
- Least concern
- Card rarity: Common
- Fish

Malacoctenus boehlkei, the Diamond blenny, is a species of labrisomid blenny native to the central western Atlantic Ocean and the Caribbean Sea where it is an inhabitant of coral reefs at depths of from 5 to 70 metres. This species can reach a length of 6.4 centimetres (2.5 in) TL. The specific name honour the ichthyologist James E. Böhlke (1930–1982), of the Academy of Natural Sciences of Philadelphia.
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Labrisomidae
- Genus
- Malacoctenus