Trinchesia kanga is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.

[2] This species was described from the President's Jetty, Dar es Salaam, Tanzania.

It has been reported from Réunion Island.

[3] The typical adult size of this species is 5 mm.

It has been reported to grow to 12 mm.