Shōichi, Shoichi or Shouichi (written: 昭一, 昇一, 正一, 昌一, 勝一 or 昇一) is a masculine Japanese given name. Notable people with the name include:
Shoichi Aoki (青木 正一) (born 1955), Japanese photographer and editorShoichi Arai (荒井 昌一) (1965–2002), Japanese professional wrestling announcer and executiveShoichi Funaki (船木 勝一) (born 1968), Japanese professional wrestlerShoichi Hirose (広瀬 正一) (born 1918), Japanese actorShoichi Kondo (近藤 昭一) (born 1958), Japanese politicianShoichi Kuwabara (born 1969), Japanese golferShōichi Nakagawa (中川 昭一) (1953–2009), Japanese politicianShoichi Nishimura (西邑 昌一) (1912–1998), Japanese footballer and managerShōichi Ozawa (小沢 昭一) (1929–2012), Japanese actorShoichi Sakata (坂田 昌一) (1911–1970), Japanese academic and physicistShoichi Sato (born 1947), Japanese golferNejime Shōichi (ねじめ 正一) (born 1948), Japanese poet and writerShōichi Watanabe (渡部 昇一) (born 1930), Japanese academic and writerShōichi Yokoi (横井 庄一) (1915–1997), Japanese military officer