Okenia stellata is a species of sea slug, specifically a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.

It is known from central New South Wales north to Northern Australia and on the west coast south to Kimberley in Western Australia.

[3] This Okenia has an ovate body and long lateral papillae held in a radiating pattern.

It is very similar to Okenia hallucigenia and can be found with this species on the same food.

Okenia nakamotoensis and Okenia kondoi are a pair of species from southern Japan, the Marshall Islands, the Philippines and Indonesia which are also similar to this species.