Ernst Hinterseer (born February 27, 1932 in Kitzbühel) is a former alpine skier from Austria.
He participated in the 1956 Winter Olympics in Cortina d'Ampezzo, ranking 6th in the giant slalom.
At the 1960 Winter Olympics of Squaw Valley, United States he won gold in the slalom, and bronze in the giant slalom competition. Following his career as a ski racer he became national trainer for slalom and giant slalom in the early 1970s.
His sons Ernst, Georg, and Hansi Hinterseer also became ski racers.