Triopha modesta, commonly known as the modest clown dorid, is a colorful species of nudibranch sea slug. Modest clown dorids are a shellless marine, gastropod mollusk in the taxonomic family Polyceridae.
Considered as valid species by Martynov et al. (2015), misidentified previously as Triopha catalinae <small>Cooper, 1863</small> (Martynov & Korshunova, 2011)
Modest clown dorids range from the Sea of Japan to southern California.