Trinchesia herrerai is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
The species was first described, then named as Cuthona herrerai in 2002. It was a Cuthona species until a DNA phylogeny of the former family Tergipedidae resulted in most species of Cuthona being transferred to the genus.
This species was described from Tarrafal de Monte Trigo, Santo Antão, Cape Verde Islands.