Frank Sedgman, Australian tennis player
Francis "Frank" Arthur Sedgman (born 29 October 1927) is a retired world No. 1 Australian tennis player whose career ran from 1945 until 1976. Sedgman won five Grand Slam singles tournaments as an amateur as well as 22 Grand Slam doubles tournaments. He is one of only five tennis players all-time to win a multiple slam set in two disciplines, matching Margaret Court, Roy Emerson, Martina Navratilova and Serena Williams. In 1951, he and Ken McGregor won the men's doubles Grand Slam. Sedgman turned professional in 1953, and won the Wembley World Professional Indoor singles title in 1953 and 1958. He also won the Sydney Masters tournament in 1958, and the Melbourne Professional singles title in 1959. He won the Grand Prix de Europe Professional Tour in 1959.

Sedgman was ranked world No. 1 amateur in 1950 by Harry Hopman and Ned Potter, in 1951 by Pierre Gillou, Hopman and Potter and in 1952 by Lance Tingay, Gillou, Hopman and Potter. Tennis de France magazine ranked Sedgman as the world No. 1 professional tennis player for the 1953 season. Jack Kramer, in his personal ranking lists, ranked Sedgman as the world No. 2 professional behind Gonzales for the 1958, 1959 and 1960 seasons.