Threespot Angelfish
Apolemichthys trimaculatus
- Least concern
- Card rarity: Common
- Fish

Apolemichthys trimaculatus, the threespot angelfish or flagfin angelfish, is a demersal marine ray-finned fish in the angelfish family Pomacanthidae. It has a wide Indo-Pacific distribution.
Classification
- Class
- Actinopterygii
- Order
- Acanthuriformes
- Family
- Pomacanthidae
- Genus
- Apolemichthys