Abstract: This study was carried out to determine the butterflies of Gökçeada and Bozcaada in Turkey. As a result, a total of 61 Lepidoptera species in the two islands was recorded. Of these, species 45 were found in Gökçeada and 16 species were found in Bozcaada. Additionally, it was appeared that 13 species for Gökçeada and all of the 16 species for Bozcaada were the first records.