Doris kyolis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Dorididae.
Distribution of Doris kyolis includes Rio de Janeiro State, southeastern Brazil.
The maximum recorded body length is 18 mm.
Minimum recorded depth is 1 m. Maximum recorded depth is 1 m.
Prey of Doris kyolis include sponges Dysidea etheria, Lissondendoryx isodictialis, Haliclona sp. and Plakina sp.