Graham William Walker (4 August 1896 – 7 September 1962) was an English motorcycle racer, broadcaster and journalist. He also contributed greatly to the motorcycle section of the National Motor Museum. During World War II, Walker took part in a campaign to recruit new dispatch riders. In 1935, after his motorcycle racing career had finished, Walker was employed by the BBC as a commentator for motorcycle racing events on television and radio. In 1949, Walker was partnered on the BBC's motorcycle commentaries with his son, Murray.