Trinchesia kuiterorum is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.
This species was described from Green Point, Sydney Harbour, New South Wales, Australia.
Trinchesia kuiterorum feeds on the sponge associated solitary hydroid Zyzzyzus spongicola. In a remarkable adaptation the cerata have tentacle-like filaments which mimic the tentacles of the hydroid.