Enneapterygius niger
Enneapterygius niger
- Least concern
- Card rarity: Common
- Fish

Enneapterygius niger, known commonly as the black triplefin, is a species of triplefin blenny from the Western Pacific Ocean. It is a small species that was described by Ronald Fricke in 1994.
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Tripterygiidae
- Genus
- Enneapterygius