Antai-ji (安泰寺) is a Buddhist temple that belongs to the Sōtō school of Zen Buddhism. It is located in the town of Shin'onsen, Mikata District, in northern Hyōgo Prefecture, Japan, where it sits on about 50 hectares of land in the mountains, close to a national park on the Sea of Japan. It accepts visitors in the summer months, but is inaccessible during the winter due to heavy snow.