Hypselodoris kanga is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

[4] Hypselodoris kanga has a blue-grey body covered in black and yellow spots.

The smooth outer side of each gill is orange-red in the upper quarter and the rest has a background colour of light blue with a row of large yellow spots.

The two outer corners of each gill are bordered with red at the tip becoming dark blue at the base.

This species can reach a total length of at least 70 mm (2.8 in) and has been observed feeding on sponges from the genus Dysidea.