Four-lined Wrasse
Pseudocheilinus tetrataenia
- Least concern
- Card rarity: Common
- Fish

The four-lined wrasse, Pseudocheilinus tetrataenia, is a species of wrasse native to the Pacific Ocean. It inhabits coral reefs at depths from 6 to 44 m. This species can grow to 7.5 cm (3.0 in) in total length. It can be found in the aquarium trade.
Classification
- Class
- Actinopterygii
- Order
- Labriformes
- Family
- Labridae
- Genus
- Pseudocheilinus