Brazilian fanged blenny
Ophioblennius trinitatis
- Least concern
- Card rarity: Common
- Fish

Ophioblennius trinitatis is a species of combtooth blenny endemic to the southwest Atlantic ocean. It is a subtropical marine fish commonly found in reefs off the coast of Brazil. Combtooth blennies are often referred to as "peixes-macacos" in Brazil, which translates to "monkey-fish".
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Blenniidae
- Genus
- Ophioblennius