Real Madrid 13
AC Milan 7
Liverpool 6
Barcelona 5
Bayern Munich 6
Ajax 4
Inter Milan 3
Manchester United 3
Benfica 2
Juventus 2
Nottingham Forest 2
Porto 2
Aston Villa 1
Borussia Dortmund 1
Celtic 1
Chelsea 1
Feyenoord 1
Hamburg 1
Marseille 1
PSV Eindhoven 1
Red Star Belgrade 1
Steaua Bucharest 1

Sources: UEFA, Wikipedia