Layton Kor (June 11, 1938 - April 21, 2013) was an American rock climber active in the 1960s, whose first ascents and drive for climbing are well known in the climbing world. His routes included many climbs in Eldorado Canyon, near Boulder, Colorado, The Diamond on Longs Peak, towers in the desert southwest, and Yosemite National Park, among other locations. Notable among his first ascents is the Kor-Ingalls Route on Castleton Tower and The Finger of Fate Route up the Fisher Towers' Titan; both routes are recognized in the historic climbing text Fifty Classic Climbs of North America.