The Mediolanum Forum (formerly known as Fila Forum, Datch Forum and Forum di Assago) is an indoor sports arena, in Assago near Milan, Italy.

The arena has a capacity of 11,500 and is primarily used for ice hockey, basketball and tennis. It also hosts live concerts.

The Forum received the European Prize for Architecture for sports venues awarded by CONI and the Council of Europe.

It is also the only structure in Italy along with Palalottomatica in Rome to be part of the European Arenas Association network.

The Forum is the home floor of the Italian professional basketball team Armani Jeans Milano.