Fate/stay night (フェイト／ステイナイト, Feito/sutei naito?) is a Japanese eroge visual novel game created by TYPE-MOON, which was originally released on January 30, 2004. It is TYPE-MOON's first commercial work, following its transition from a doujin soft visual novel group.

Set in the same universe as previous TYPE-MOON releases, it is among the most well-known and popular visual novels.