Willy Bertin (born August 26, 1944) is an Italian ski mountaineer and former cross-country skier and biathlete. Bertin was born in Angrogna. Together with Felice Darioli and Lino Zanon he finished fourth in the 1971, and second in the 1973 Trofeo Mezzalama, and together with Darioli and Fabrizio Pedranzini, he placed third in the military team category in the 1975 edition of the same competition, which was carried out as the first World Championship of Skimountaineering.