Physalaemus aguirrei is a species of frog in the family Leptodactylidae. It is endemic to eastern Brazil and occurs in the southern Bahia, northern Espírito Santo and northeastern Minas Gerais. The specific name aguirrei honours Alvaro Coutinho Aguirre, a Brazilian zoologist. However, common name Linhares dwarf frog has been proposed for it.
Physalaemus aguirrei is a ground-living species found in forests, forest edges, degraded habitats, pastures, and swamps at elevations up to 174m (571feet) above sea level. It breeds using foam nests in temporary ponds. It is a common species that probably suffers from habitat loss caused by intensive agriculture, wood plantations, livestock grazing, clear-cutting, and human settlement. It is present in several protected areas.