In this study, 702 specimens belonging to the genus Medon Sephens were examined. The material was obtained from various field trips between 2010-2019 by using aspirator, sifter, pitfall trap, berlese funnel and MSS trap methods. As a result of the study, 15 of the 22 known species from Turkey were identified. Medon brunneus (Erichson, 1839), M. ferrugineus (Erichson, 1840), M. lanugo Assing, 2004 and M. subfusculus Fagel, 1969 from the Aegean Region, M. semiobscurus (Fauvel, 1875), M. abantensis Bordoni, 1980 and M. lamellatus Assing, 2004 from the Central Anatolian Region are reported for the first time. Besides, M. rufiventris (Nordmann, 1837) is recorded for the first time from both the Aegean and Central Anatolian Regions. In addition, many new locality records of the recorded species were presented. The distributions of all Medon species in Turkey were mapped.