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

[2] The type locality of this species is Msimbati, Mtwara Region, Tanzania.

[3] Nembrotha aurea is a large creamy-yellow nembrothid that grows to at least 30 mm in length.

The body is marked with brown longitudinal lines.

Nembrotha aurea eats colonial ascidians.