Kenton Edward Cool (born 30 July 1973) is an English mountaineer, and mountain guide. He is one of Britain's leading alpine and high altitude climbers and has reached the summit of Mount Everest sixteen times, including leading Sir Ranulph Fiennes' 2008 and 2009 Expeditions. He has completed over 20 notable expeditions in the Greater Ranges and, in 2013, became the first person to climb Nuptse, Everest and Lhotse in a single push without returning to base camp.