Franz Heinzer (born 11 April 1962 in Rickenbach, Schwyz, Switzerland) is a former alpine ski racer, who specialized in downhill.

Together with Franz Klammer, Toni Sailer, Jean Claude Killy, Karl Schranz and Stephan Eberharter, he is considered among the best downhill racers of all time.

Heinzer won at the world's most famous downhill venues: Kitzbühel (3x), Wengen, Val Gardena (2x), Garmisch, Val-d'Isère, Aspen, Lake Louise, and St. Anton.

He now runs his own sports products company in Altdorf, and since the winter of 2004, also works as the assistant coach of Swiss national downhill team.

[2] The Franz Heinzer Piste in the Swiss ski resort of Stoos, a FIS-approved downhill run on the Klingenstock, is named in his honour.