Nissei may refer to:
Nisei, second-generation Japanese immigrants in the Americas Nippon Life or Nissay, Japanese life insurance company Nissei-chuo Station, railway station in Inagawa, Hyōgo, Japan Nissei Line, route of Nose Electric Railway from Yamashita Station to Nissei-chuo Station Nissay Theatre, theatre in Chiyoda, Tokyo, Japan Nippon Life Stadium, former baseball stadium in Osaka, Japan Nissay Red Elf, professional women's table tennis team in the T.League
See also Nisshin (disambiguation)