Mark Joseph Inglis (born 27 September 1959) is a New Zealand mountaineer, researcher, winemaker and motivational speaker. He holds a degree in Human Biochemistry from Lincoln University, New Zealand, and has conducted research on leukaemia. He is also an accomplished cyclist and, as a double leg amputee, won a silver medal in the 1 km time trial event at the 2000 Summer Paralympics in Sydney. He is the first double amputee to reach the summit of Mount Everest, the highest mountain in the world. In addition to being a goodwill ambassador for the Everest Rescue Trust, Inglis has created a New Zealand-based charitable trust Limbs4All. He has also created a range of sports drinks and energy gels named PeakFuel.