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

It is a marine gastropod mollusc in the family Aeolidiidae.

[2] This species was described from Tomioka Bay, Japan, 32°32′0″N 130°3′0″E / 32.53333°N 130.05000°E / 32.53333; 130.05000.

[4] Baeolidia japonica has two colour forms.

The rhinophores have elongate papillae on all sides.