Elizabeth Knowlton (October 23, 1895 - January 29, 1989) was an American mountaineer and writer, who was one of the first female mountain climbers to climb above 20,000 feet in the Himalayas. Knowlton became internationally known as the only female climber in a German-American expedition that attempted to climb the seventh-highest peak in the world, Nanga Parbat in Kashmir.