The six-line wrasse (Pseudocheilinus hexataenia) is a species of marine ray-finned fish from the family Labridae which has a wide Indo-Pacific distribution.

[4] The six-line wrasse occurs from the eastern coast of Africa where it is found from the Red Sea to South Africa across the Indian Ocean and into the Western Pacific Ocean where its range extends north to Japan, south to northern Australia and east as far as Tuamotu.

[1] The six-line wrasse occurs among the branches of corals on seaward reef, it is also found in clear coastal waters and in areas of dense coral growth on the crests of reefs in shallow water or on the slopes.

This is a secretive and shy species which is normally encountered in small, loose groups swimming among the branches of corals for protection.

[1] This species was first formally described as Cheilinus hexataenia in 1857 by the Dutch ichthyologist Pieter Bleeker (1819-1878) with the type locality given as Ambon in the Moluccas.