Felimida neona, also known as the "Neon Sea Goddess", is a species of colorful sea slug, a dorid nudibranch; it is a marine gastropod mollusk in the family Chromodorididae. It was described by Ernst Marcus in Brazil in 1955.
This gastropod exhibits a reticulated pattern of yellow lines edged with red hovering over a pale gray-blue background. It is sometimes confused with Chromodoris clenchi or Chromodoris binza but can be distinguished by the presence of white rhinophores and blue-tipped brachial leaves. The maximum recorded length is 30 mm.