Mirjam Puchner is an Austrian World Cup alpine ski racer from St Johann im Pongau in Salzburg. She made her World Cup debut on 12 January 2013 in St. Anton, Austria. Puchner attained her first World Cup podium in March 2016 at St. Moritz, Switzerland, where she won the downhill event at the season finals.
Born in Schwarzach im Pongau, she is the sister of alpine ski racer Joachim Puchner.
