Doto is a genus of sea slug, a nudibranch in the family Dotidae. This genus feeds on hydroids, as reflected by its serrated radula. Oken's 1815 Lehrbuch der Naturgeschichte has been placed by ICZN Opinion 417 on the Official Index of Rejected and Invalid Works in Zoology, but an exception was made for Doto which has been placed by ICZN Opinion 697 on the Official List of Generic Names.