Mount Hiuchi, also Hiuchigatake (Japanese: 燧ヶ岳) is a 2,356 m tall stratovolcano in Oze National Park, and located in Hinoemata Village, Minami-Aizu gun, Fukushima Prefecture, Japan. This is the highest mountain in Tōhoku region. The volcano rises in the north of Lake Ozenuma [ja]. It is one of the 100 Famous Japanese Mountains.

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Hiuchi initially formed around 350,000 years ago. Around 160,000–170,000 years ago, Hiuchi erupted, creating a large pyroclastic flow deposit. At the summit of the volcano lie two lava domes, Akanagure (赤ナグレ) and Mi-ike (御池岳). Akanagure, the southern dome, produced a series of viscous lava flows that flowed down the southern and western parts of the volcano about 3500 years ago. Mi-ike is responsible for the only recorded activity.

The only recorded activity was on July 28, 1544. A moderate phreatic eruption at the Mi-ike Lava Dome produced lahars and an associated tephra layer.

• Asteroid 6883 Hiuchigatake, named after Hiuchigatake
• List of volcanoes in Japan
• List of mountains in Japan

• Yukio Hayakawa; Fusao Arai; Tomohiro Kitazume (1997). "Eruptive History of Hiuchi Volcano". Journal of Geography (Chigaku Zasshi). 106 (5): 660–664. doi:10.5026/jgeography.106.5_660.

• National catalogue of the active volcanoes in Japan: Hiuchigatake - Japan Meteorological Agency
• Quaternary Volcanoes: Hiuchigatake - Geological Survey of Japan, AIST
• "Hiuchigatake". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-24.
• Volcanolive.com