Priapichthys is a genus of poeciliid fishes native to Costa Rica, Panama and Colombia. The type species is Priapichthys annectens
There are currently seven recognised species in this genus
- Priapichthys annectens
- Priapichthys caliensis
- Priapichthys chocoensis
- Priapichthys darienensis
- Priapichthys nigroventralis
- Priapichthys panamensis
- Priapichthys puetzi