In this study, the fauna of Papilionoidea and Hesperioidea (Lepidoptera) from Göksu Valley, Mut district, in the Mediterranean region of Southern Turkey were investigated. Field collections were conducted between April and August from 2007–2009. Individuals were collected from 58 field surveys. The specimens belonged to 131 species in five families, including Papilionidae (6 species), Pieridae (16), Nymphalidae (42), Lycaenidae (53), and Hesperiidae (14). Fifty-nine of the 131 species were new records for the Lepidoptera fauna of Mut.