The Suweon tree frog, also spelled Suwon treefrog, Hyla suweonensis, is a species of tree frog found in western South Korea, probably from the Imjin River to the Bay of Asan. Its distribution and population have been assessed to be below 800 individuals and the status of the species has been updated as Endangered by the IUCN.The Suweon tree frog and the Japanese tree frog, which is also found in the same region, are the only two hylid species found on the Korean Peninsula.