Three-spot Dascyllus
Dascyllus trimaculatus
- Least concern
- Card rarity: Common
- Fish

The threespot dascyllus, also known as the domino damsel or simply domino, is a species of damselfish from the family Pomacentridae. It is native to the Indo-Pacific from the Red Sea and East Africa, to the Pitcairn Islands, southern Japan, and Australia, and can also be found in some parts of the Philippines.
Classification
- Class
- Actinopterygii
- Order
- Blenniiformes
- Family
- Pomacentridae
- Genus
- Dascyllus