Nadia Fanchini (born 25 June 1986) is a former World Cup alpine ski racer from Italy. Born in Lovere, she lives in Val Camonica. Her sisters Elena and Sabrina Fanchini were also members of the Italian World Cup team.
Fanchini represented Italy at the 2006 Winter Olympics and at four World Championships. She won a bronze medal in the downhill at the 2009 World Championships in Val d'Isère, France, and a silver medal in the downhill at the 2013 World Championships in Schladming, Austria.
In the final World Cup race before the 2010 Winter Olympics, Fanchini injured both knees in a Super-G. She missed the Olympics and the remainder of the 2010 season, as well as the 2011 season.
Nadia Fanchini has won 13 national titles.