The 1988–89 European Cup was the 34th season of the European Cup football club tournament. The competition was won for the first time since 1969, and third time overall, by Milan comfortably in the final against former winners Steaua București.

Associazione Calcio Milan, commonly referred to as AC Milan or simply Milan, is an Italian professional football club based in Milan, Lombardy. Founded in 1899, the club competes in the Serie A, the top tier of Italian football, and has spent its entire history there with the exception of the 1980–81 and 1982–83 seasons.