Antiopella is a genus of small to large sea slugs, or more accurately nudibranchs, marine gastropod mollusks, in the family Janolidae.
Species of Antiopella were included in Janolus for a period of time.
This genus of nudibranch is found in shallow and subtidal waters.
Antiopella species feed on Bryozoa, moss animals.
Species in the genus Antiopella include: