The Nippon Sharyo DMU is a model of diesel multiple unit passenger train designed and manufactured by Nippon Sharyo for the North American market, and compliant with FRA Tier 1 crashworthiness standards. It has been ordered by Sonoma–Marin Area Rail Transit (SMART) in Sonoma and Marin Counties, California, and by Metrolinx for the Union Pearson Express airport link in Toronto, Ontario.

Nippon Sharyo, Ltd. , formed in 1896, is a major rolling stock manufacturer based in Nagoya, Japan. In 1996, it abbreviated its name to "日本車両" Nippon Sharyō. Its shortest abbreviation is Nissha "日車". It was a listed company on Nikkei 225 until 2004. It is listed on the Tokyo Stock Exchange and Nagoya Stock Exchange as ticker 7102. In 2008, Central Japan Railway Company became the majority shareholder (50.1%) of the financially struggling Nippon Sharyo making the firm a "consolidated subsidiary" of JR Central. In July 2012 Nippon Sharyo USA started production in their new facility in Rochelle, Illinois. The facility closed at the end of October 2018 due to a lack of orders.