© 2020 Parlar Scientific Publications. All rights reserved.In this study, it was aimed to identify the Coleoptera species of Buyukada in the Sea of Marmara. Although there are various studies on insect species in this area, there is no direct study on the diversity of Coleoptera species. Sweep net, pheromone, pitfail and light traps were used to collect insects from the field. As a result of the studies carried out between 2014 and 2018, 19 families and 58 species belonging to the Coleoptera order living in Buyukada were identified.