Dendronotus elegans is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.

[2] This species was described from 48 m depth off Cape Cod, Massachusetts, Atlantic Ocean 42°10′N 70°13′W / 42.16°N 70.22°W / 42.16; -70.22.

It is a possible synonym of Dendronotus frondosus.

[3]