The leaf beetle fauna of Turkey is reviewed and a complete checklist with provincial distributions is presented for the first time. Seven hundred and seventy-six species are catalogued in total. This represents approximately 22% of the known Palaearctic leaf beetle fauna. The Turkish leaf beetle fauna is characterized by 81 endemic species. Distributions of the species in Turkey are given based on available literature records. Some new materials from new localities are also examined. Taxa in the list are arranged systematically under family, subfamily, genus, subgenus (when recognized) and species. The subspecies are not included in the list but mentioned in the notes given for certain species. The species whose occurrences in Turkey need conformation are not included in the list but are given separately. Additionally, two new synonymies are stated: Psylliodes diversicolor Nadein 2006=P.kasnakensis Gok et Aslan, 2007 syn.nov.; Phyllotreta maculicornis Pic, 1906=Ph.ispartaensis Gok, 2005 syn.nov.