Black Narrow-mouthed Frog
Ctenophryne aterrima
- Least concern
- Card rarity: Common
- Amphibians

Ctenophryne aterrima is a species of frog in the family Microhylidae. It is found in northwestern Ecuador, the Andes of Colombia, and lowland and premontane zones of Panama and Costa Rica to about 1,600 m (5,200 ft) above sea level.
Classification
- Class
- Amphibia
- Order
- Anura
- Family
- Microhylidae
- Genus
- Ctenophryne