Geoffrey Hastings FRGS (1860–1941) was a British mountaineer who made numerous first ascents of rock-faces and peaks in the Lake District, the Alps and Norway, and helped to lay the foundations for mountain-climbing as a sport. He, Albert Mummery and J. Norman Collie were authoritatively considered to be the finest climbing trio of their day and were the first to attempt to reach the summit of an eight-thousander in the Himalaya.