Hypselodoris placida is a species of sea slug or dorid nudibranch. It is a marine gastropod mollusk in the family Chromodorididae.
This nudibranch is only found in Japan and the seas around Hong Kong.
The hypselodoris placida has an opaque white body and a white-blue mantle edge and foot. There are black specks present on the upper dorsum and body. The gills and rhinophores are white, tipped with yellow.
This species can reach a total length of at least 20 mm.