Ōdaigahara-san or Ōdaigahara-yama(大台ケ原山?), also Hinode-ga-take or Hide-ga-take(日出ヶ岳?) is a mountain in the Daikō Mountain Range and on the border between the prefectures of Mie and Nara, Japan. The mountain is the highest in Mie. In 1980 an area of 36,000 ha in the region of Mount Ōdaigahara and Mount Ōmine was designated a UNESCOMan and the Biosphere Reserve.