Long-tailed Porcupine
Trichys fasciculata
- Least concern
- Card rarity: Common
- Mammals

The long-tailed porcupine is a species of rodent in the family Hystricidae found in Brunei, Indonesia, and Malaysia. It is the only species in the genus Trichys.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Hystricidae
- Genus
- Trichys