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.

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.

A moderate phreatic eruption at the Mi-ike Lava Dome produced lahars and an associated tephra layer.