Doris montereyensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Dorididae.

Doridoidea, commonly known as dorid nudibranchs, are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nudibranc