The first detailed data on species composition of leaf beetles of Hatila Valley National Park, Artvin, Turkey are presented. During the field surveys conducted in 2015, in total 49 species of Chrysomelidae from 26 genera belonging to 7 subfamilies were registered. Among them, 30 species are recorded for the first time from Artvin Province. The subfamily Galerucinae is the most diverse and includes 23 species in the park (18-Alticini, 4-Galerucini and 1-Luperini), however two subfamilies, Criocerinae and Eumolpinae, are represented by only one species each. The genus Cryptocephalus Geoffrey, 1762 is the most diverse (7 species), followed by Cassida Linnaeus, 1758 (6),