Club World Ranking by IFFHS (1st September 2008 - 31st August 2009)

La Roma è prima delle italiane nella classifica annuale stilata dall'Iffhs (Istituto Internazionale di Storia e Statistica del Calcio. Il Manchester United guida la classifica, seguito dal Barcellona.

1. Manchester United FC England/4 321,0
2. FC Barcelona España/4 318,0
3. Club Estudiantes de La Plata Argentina/4 285,0
4. Chelsea FC London England/4 282,0
5. Hamburger SV Deutschland/4 268,0
6. FC Shakhtyor Donetsk Ukraina/3 260,0
7. Arsenal FC London England/4 247,0
8. SV Werder Bremen Deutschland/4 240,0
9. Liverpool FC England/4 225,0
10. Cruzeiro EC Belo Horizonte Brasil/4 225,0
11. Galatasaray SK İstanbul Türkiye/3 216,0
12. AS Roma Italia/4 212,0
13. FC Bayern München Deutschland/4 211,0
14. Grêmio Foot-Ball Porto-Alegrense Brasil/4 206,0
15. Juventus FC Torino Italia/4 200,0
16. Villarreal CF España/4 195,0