Felimare lapislazuli is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

[3][4] This nudibranch is known only from the Galapagos Islands.

[5] Felimare lapislazuli has a black body covered in yellow and blue spots and a white mantle edge.

The gills are white and the rhinophores exhibit the same pattern as the body.

This species can reach a total length of at least 50 mm (2.0 in).