The 285 series (285系, 285-kei) is a sleeper electric multiple unit (EMU) train type operated jointly by Central Japan Railway Company (JR Central) and West Japan Railway Company (JR-West) on the overnight Sunrise Izumo and Sunrise Seto limited express services in Japan.

These EMUs were introduced from 10 July 1998 to replace ageing locomotive-hauled "Blue Train" coaches which once operated on separate Seto and Izumo services between Tokyo, Shikoku and the Sanin region.

[2] As of 1 April 2015[update], the fleet consists of five sets, numbered I1 to I5.

Sets I4 and I5 are owned by JR Central, and are classified 285-3000 series (the individual cars are numbered in the 3000 range).

[3] The cars of JR Central sets I4 and I5 are numbered in the -3000 series.