The fauna of Iranian Agyrtidae and Ptiliidae (Coleoptera: Staphylinoidea) is summarized in this paper. Within Agyrtidae, two species from two genera (Agyrtes Frölich and Apteroloma Hatch) within two subfamilies (Agyrtinae and Pterolomatinae) are reported. Within Ptiliidae, 10 species from four genera (Acrotrichis Motschulsky, Nossidium Erichson, Ptenidium Erichson, and Ptinella Motschulsky) within two subfamilies (Ptiliinae and Acrotrichinae) are reported. Acrotrichis (Acrotrichis) sericans (Heer, 1841) and Ptinella aptera (Guerin-Meneville, 1839) (both Ptiliidae) are new country records for Iran.