The Cinque Mulini is an annual cross country running race in San Vittore Olona, Italy. First held in 1933, the course is unusual in that it revolves around a number of water mills along Olona river, which lend the competition its name – meaning Five Mills in Italian. It is one of the IAAF cross country permit meetings that act as qualifiers for the IAAF World Cross Country Championships. As one of the most prestigious meets, numerous world record holders and Olympic champions have competed at the Cinque Mulini throughout its history.