Nembrotha chamberlaini is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Polyceridae.

[1] Nembrotha chamberlaini is white with streaks of orange, yellow, green, or black and occasionally yellow splashed across the upper mantle.

It has very distinctive bright red gills and rhinophores.

The foot and mouth parts are typically light-purple.

All three species have a similar range of color variation although N. aurea often has orange patches not present in Nembrotha chamberlaini.