The blueside wrasse, Cirrhilabrus cyanopleura, is a species of wrasse native to the eastern Indian Ocean and the western Pacific Ocean. It is found on reefs in schools swimming 1 to 2 m (3.3 to 6.6 ft) above the bottom. It occurs at depths from 2 to 30 m (6.6 to 98.4 ft), most often between 5 and 20 m (16 and 66 ft). This species can reach a standard length of 15 cm (5.9 in). It can be found in the aquarium trade.