Henry Peter "Harry" Karstens (September 2, 1878 – November 28, 1955) was the first superintendent of Mount McKinley National Park (now known as Denali National Park), from 1921 to 1928. He was the guide and climbing leader of the first complete ascent of Denali (Mount McKinley) in 1913, with expedition members Hudson Stuck, Episcopal Archdeacon of the Yukon and Arctic; Walter Harper and Robert Tatum. John Fredson was one of two young Gwich'in Alaska Natives who supported the party.