Eastern triangular butterflyfish
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Perciformes
- family: Chaetodontidae
- genus: Chaetodon
- species: Chaetodon baronessa
- The Bottom
Saba
BQ- West Bay
00
Cayman Islands- Marsa Alam
Red Sea
Egypt- Bouillante
Guadeloupe
Guadeloupe- Calero
00- Ligayan
Autonomous Region in Muslim Mindanao- Dumaguete City
Central Visayas- Lucap
Ilocos- Panlaitan
- Puerto Galera
- Puerto Princesa
- Sabang
- Tabinay
Mimaropa- San Joaquin
Western Visayas
Philippines- Lata
Temotu
Solomon Islands