Arabian Butterflyfish
Chaetodon melapterus
- Least concern
- Card rarity: Common
- Fish

Chaetodon melapterus, the Arabian butterflyfish, blackfin butterflyfish or black-finned melon butterflyfish, is a species of marine ray-finned fish in the butterflyfish family Chaetodontidae. It is found in the northwestern Indian Ocean.
Classification
- Class
- Actinopterygii
- Order
- Acanthuriformes
- Family
- Chaetodontidae
- Genus
- Chaetodon