The 183 series (183系, 183-kei) was a Japanese limited express electric multiple unit (EMU) train type introduced in 1972 by Japanese National Railways (JNR). Following the privatization of JNR, the 183 series was operated by East Japan Railway Company (JR East) and West Japan Railway Company (JR-West). In terms of design, it is closely based on the late-model AC/DC 485 series, with minor cosmetic differences and DC-only drive. The last 189 series sets were withdrawn on 29 March 2019.