Phyllidia multituberculata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.

[2] This species was described from Pulu Bambu in the Aru Islands, south-west of Papua New Guinea.

[3] This species has previously been confused with Phyllidia ocellata.

[4] This species is bilaterally symmetric and reproduces sexually.

[5] This species feeds on a sponge.