Blue moki (Latridopsis ciliaris) is a species of marine ray finned fish belonging to the family Latridae, the trumpeters.

It is native to the southwestern Pacific Ocean around New Zealand and occasionally off southeastern Australia at depths of 10 metres (33 ft) and greater.

The blue moki was first formally described as Anthias ciliaris in 1801 by the German naturalist Johann Reinhold Forster with the type locality given as New Zealand.

[2] In 1862 the American ichthyologist Theodore Nicholas Gill described a new genus, Latridopsis and designated Forster's Anthias ciliaris as its type species.

[6] Blue moki belongs to the family Latridae commonly known as trumpeter,[7] which has 4 subspecies of abundance in New Zealand waters.

The population of blue moki on the west coast is uncertain, but there have been small commercial hauls taken off shore from New Plymouth and Greymouth.

[8] Blue moki are rare in Australia but have been recorded from immediately south of Botany Bay near Sydney and from Tasmania.

[11] Juvenile blue moki are then found inshore in coastal rocky reefs; whereas adults tend to school offshore over open bottom areas.

[10] The larvae period of the blue moki spawn lasts about six months; from there juveniles are then found inshore in coastal rocky reefs, whereas adults tend to school offshore over open bottom areas.

This is a result of them feeding on benthic species such as crabs, gastropod, bivalve molluscs, polychaete worms and Munida gregaria.

[12] Humans are the blue moki's largest predator, which fishes them commercially using set nets in the areas between East Cape and Kaikōura.