Ji Wallace (born 23 June 1977 in Lismore, Victoria, Australia) is an Australian gymnast and Olympic trampoline champion. Earlier in his career Ji Wallace won several Australian national titles and made an international breakthrough in 1996 by winning gold in the DMT (double mini trampoline) discipline at the 19th Trampoline World Championships in Vancouver. In the World championships held in Sydney, he set a world record for completing a jump with the highest degree of difficulty in the DMT, a triple-triple.