Baeolidia palythoae is a species of sea slug, an aeolid nudibranch.

It is a marine gastropod mollusc in the family Aeolidiidae found in South Africa.

Additional specimens were collected at localities on the coast of South Africa from Umgazana to Jesser Point, Sodwana Bay National Park, Natal.

The yellow colour is overlaid with a reticulate brown pattern, which varies in density.

Ventrally and slightly eccentric to the apex is a larger spot of dark brown pigment.