Thirty Hyla orientalis (oriental tree frog) from Western Turkey (Izmir Province) were examined for helminth parasites. The frogs were collected in the spring of 2013. Four species of helminth parasites were recorded: three species of Nematoda (Cosmocerca ornata, Oswaldocruzia filiformis, Oxysomatium brevicaudatum), and one species of Acanthocephala (Acanthocephalus ranae). Oxysomatium brevicaudatum was recorded for the first time from Hyla orientalis in Turkey. A list of helminth parasites of Hyla spp. in Turkey is presented.