The Hakone Tozan 3000 series (箱根登山鉄道3000形) is a single-car electric multiple unit (EMU) train type operated by the Japanese private railway operator Hakone Tozan Railway on its steeply graded Hakone Tozan Line since 1 November 2014.

[3] The fleet consists of two single-car units branded "Allegra".

The general design of the trains was overseen by Noriaki Okabe Architecture Network, with the two vehicles on order costing a total of approximately 800 million yen.

[3] Passenger accommodation consists mostly of four-person seating bays, with a wheelchair space at the Gora end of the cars.

[6] In May 2015, the 3000 series was awarded the 2015 Laurel Prize, presented annually by the Japan Railfan Club.