Satoshi Saida (斎田 悟司, Saida Satoshi, born March 26, 1972 in Yokkaichi, Mie) is a Japanese pioneering wheelchair tennis player and 2004 Summer Paralympics gold medalist (Men's doubles with Shingo Kunieda). Saida, a big baseball enthusiast in his childhood, lost his left leg because of illness. At first, he used to play wheelchair basketball with his friends. At the age of fourteen, he had an opportunity to get to know wheelchair tennis with his basketball teammates at a seminar which took place in his hometown, and started this sport.