The Izuhakone Railway (伊豆箱根鉄道 Izu Hakone Tetsudō?) is a railway company in Kanagawa Prefecture and Shizuoka Prefecture, Japan. The company also operates excursion ships, and the group companies operate buses and taxis. The company has its roots in Zusō Railway (豆相鉄道 Zusō Tetsudō?) founded in 1893. Izuhakone Railway is a member of Seibu group. The Daiyūzan Line accepts PASMO, a smart card ticketing system.
The company operates two detached lines in different prefectures. The Daiyūzan Line runs in Kanagawa Prefecture, while the Sunzu Line runs in Shizuoka Prefecture. Both lines primarily function as commuter rails, but the latter also transports tourists to the Izu Peninsula.
In the past, it also operated "Komagatake Cable Line" (駒ヶ岳鋼索線), which was connected to the ropeway at the top of the mountain from 1957 to 2005.