Phyllidia elegans, also known as the elegant phyllidia,[2] is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.

[3] It is found in shallow water in the Red Sea and the tropical Indo-Pacific region.

[4] This species has been found in Indonesia, Malaysia, Thailand, the Andaman Sea, Myanmar, the Red Sea, the Mariana Islands, north Sulawesi, Vanuatu and Papua New Guinea.

[5] This animal can be distinguished by a pale-coloured foot having a single median longitudinal black line on the sole, light pink dorsal tubercles commonly tipped in yellow, and black lines on the lateral margins of the sole.

[4][6]