The white-barred wrasse, Pseudocheilinus ocellatus, is a species of wrasse native to the central western Pacific Ocean. It inhabits coral reefs at depths from 20 to 58 m (66 to 190 ft). This species can grow to 10.3 cm (4.1 in) in standard length. It can also be found, under the trade name "mystery wrasse", in the aquarium trade.