Mario Bacher (September 6, 1941 – July 16, 2014) was an Italian ski mountaineer and cross-country skier.
Bacher was born in Formazza. He participated at the 1968 Winter Olympics, when he placed 12th in the 50 kilometres race of cross-country skiing. Together with Lino Jordan and Franco Ceroni he placed 3rd in the Trofeo Mezzalama ski mountaineering competition.
Further notable results were: