The Mediolanum Forum is an indoor sports arena that is located in Assago, near Milan, Italy. The arena has a seating capacity of 12,700 and is primarily used for ice hockey, basketball, tennis & live concerts. The venue is the home ground of the Italian League professional basketball team Pallacanestro Olimpia Milano.
The Forum received the European Prize for Architecture for sports venues awarded by CONI and the Council of Europe. It is also one of two facilities in Italy, along with PalaLottomatica in Rome, to be part of the European Arenas Association network. In January 2009, the arena changed its name to the current name of Mediolanum Forum, replacing the old name of DatchForum.