Berthella ocellata is a species of sea slug, a marine gastropod mollusc in the family Pleurobranchidae.

It is native to the eastern Atlantic Ocean and the Mediterranean Sea where it inhabits the shallow sublittoral zone.

The head bears a pair of small black eyes and the mouth is underneath, with the buccal veil protruding on either side.

[2] This species occurs in the Mediterranean Sea, the eastern Atlantic Ocean, including the Canary Islands.

[2] Being nocturnal, B. ocellata spends the day under stones, in crevices or in caves; it feeds on sponges such as Plakina trilopha, Plakinastrella copiosa and Corticium candelabrum, using its muscular radula to rasp off fragments.