David Allen Hahn is an American mountaineer, ski patroller and journalist. In May 2013, he reached the summit of Mount Everest for the 15th time—at the time, this was the most summits for a non-Sherpa climber, according to Outside Magazine contributor and climber Alan Arnette. His record was surpassed by Kenton Cool in 2022. Among Hahn’s other notable accomplishments are his 39 summits of Vinson Massif, Antarctica’s highest mountain. He has reached the summit of Denali in Alaska, North America’s highest peak, 25 times over the course of 37 expeditions.