Castelnau's Wrasse
Dotalabrus aurantiacus
- Least concern
- Card rarity: Common
- Fish

Dotalabrus aurantiacus, Castelnau's wrasse, is a species of wrasses native to the Indian Ocean coasts of Australia. It is the type species of its genus. The type locality is Adelaide, St. Vincent Gulf, South Australia.
Classification
- Class
- Actinopterygii
- Order
- Labriformes
- Family
- Labridae
- Genus
- Dotalabrus