Trinchesia ocellata is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.

[2] This species was described from the Gulf of Naples, Italy.

It has been recorded on the coasts of the Mediterranean Sea from Italy to Spain.

[3][4] Trinchesia ocellata is found on a number of colonial hydroids including Sertularella and Halecium labrosum.

[4]