Saint-Joseph Gadji-Celi (born 1 May 1961) is an Ivorian former professional footballer who played as a midfielder.
Born in Abidjan, Gadji-Celi played for Stella Club d'Adjamé, ASEC Mimosas and FC Sète 34.
He was a member of the Ivory Coast national team between 1984 and 1992, serving as captain of the national team, including at the 1992 African Cup of Nations, which Ivory Coast won.
His nephew is fellow footballer Junior Tallo.