The biggest fan base in Milan are at the San San Siro. The ground for both the MILAN TEAMs.
The football club with the biggest fan club in Spain is Barcelona football team.
AFC Wimbledon have a fan known as Salad, he is a very big man who must be the largest fan.
AC Milan and Inter Milan are the two main football teams in Italy
The English club Manchester united has the largest fan base in the world, Real Madrid comes second.
1-Real Madrid With 183 millions fan
Manchester United have the most registered fan on any database accounting people associated with any football club worldwide, 2008 figure was 412 million. ( 412,000,000 )
It is Manchester United.
Portishead united football club 12000 km2
The Bristol City Football Club is the premiership club closest to Bristol. You should check them out if you are a big football fan. They are quite interesting.