The 735 series (735系) is an electric multiple unit (EMU) train type built in 2010 and operated by Hokkaido Railway Company (JR Hokkaido) on suburban services in the Sapporo area in Hokkaido, Japan, since May 2012.

The 735 series is intended as an experimental type to evaluate the suitability of aluminium-body rolling stock in the cold climate of Hokkaido.

[2] The MoHa 735 car is fitted with an N-PS785 single-arm pantograph.

The floor is 100 mm (3.9 in) lower than on previous trains, for improved accessibility.

[2] Two 3-car sets were delivered from the Hitachi factory in Yamaguchi Prefecture in March 2010.