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.