Phyllidia multituberculata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.
This species was described from Pulu Bambu in the Aru Islands, south-west of Papua New Guinea. It has been reported from the Indian Ocean.
This species has previously been confused with Phyllidia ocellata. This species is bilaterally symmetric and reproduces sexually.
This species feeds on a sponge.