Charles Henry Mayo (30 November 1884 – July 1977) was an English professional golfer of the early 20th century. Mayo won the 1911 Belgian Open held at the Royal Golf Club of Belgium. Frenchman Arnaud Massy finished in second place. He had seven starts in the Open Championship, his best finish being T11 in 1912. He finished runner-up in the 1908 French Open and had five international appearances representing England against Scotland.