The Italian motorcycle Grand Prix is a motorcycling event that is part of the Grand Prix motorcycle racing season. From 1949 to 1990 the event was known by the Italian: Gran Premio Delle Nazioni (Nations Grand Prix). It was one of the original rounds of the Grand Prix motorcycle racing calendar. The race was held exclusively at Monza for the first 23 years of its existence. From 1972 to 1993, the event rotated among several circuits and has been held at the Mugello Circuit since 1994.