White-tailed Hognose Viper
Porthidium porrasi
- Least concern
- Card rarity: Common
- Reptiles

Porthidium porrasi is a species of hognose pit viper endemic to south-west Costa Rica. Like all pit vipers, P. porrasi is venomous.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Viperidae
- Genus
- Porthidium