Pleurolidiidae is a family of nudibranchs, shell-less marine gastropod molluscs or sea slugs, within the superfamily Aeolidioidea.
According to Korshunova and colleagues (2025), the following genera and species are recognised in the family Pleurolidiidae:
Pleurolidia juliae and Protaeolidiella atra are sister species according to DNA evidence and are poorly supported as members of the polyphyletic Facelinidae, being placed in their own family, Pleurolidiidae. A revision of the relationships of members of Aeolidacea, which includes Facelinidae, recovered similar results.