Gianni Alessio Bui (born 5 May 1940 in Serramazzoni) is an Italian former professional football manager and player.

He played as a forward.

[1] Bui played 11 seasons (188 games, 53 goals) in the Italian Serie A for Lazio, SPAL, Bologna, Verona, Torino, and Milan.

[1] During his managerial career, Bui coached several teams, including Genoa, Chievo, and Venezia.

This biographical article related to association football in Italy, about a forward born in the 1940s, is a stub.