The Tobu 70000 series (東武70000系, Tōbu 70000-kei) is a Japanese DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway on Tobu Skytree Line and Tokyo Metro Hibiya Line inter-running services since 7 July 2017.

A unified door arrangement with four pairs per side instead of the mixture of three and five pairs per side on the 20000 series trains allows the installation of platform edge doors on the Tokyo Metro Hibiya Line once the older train fleets have been replaced.

[2] The 70000 series trains are formed as seven-car sets as shown below, with car 1 at the northern end.

[2] Tobu Railway announced its plans to introduce a new fleet of trains with 20 m (65 ft 7 in) long cars and four sets of doors per side on each car in April 2014, jointly with Tokyo Metro.

[26] The service on which these trains operate, branded TH Liner (THライナー), offers reserved seating.