Seishi (written: 聖史, 正士, 正史 or 誠志) is a masculine Japanese given name. Notable people with the name include:
(born 1945), Japanese jurist (1902–1974), Japanese physicist (born 1974), Japanese manga artist (1902–1981), Japanese writer (1871–1948), Japanese spiritual leader , Japanese haiku writer
Other uses The Japanese term for Worship of the living
See also Mahasthamaprapta