Reginald Edgar Walker (16 March 1889 in Durban – 5 November 1951) was a South African athlete and the 1908 Olympic champion in the 100 metres.

[1] Born in the Colony of Natal, Walker, the 1907 South African Champion, was not among the big favourites for the 100 metres at the 1908 Summer Olympics.

He even had trouble getting to London, as he lacked the necessary finances until a Natal sportswriter collected funds to support Walker's travel.

There he competed against three North Americans, including James Rector of the United States, who had equalled the Olympic record in both of the qualifier rounds.

Walker was discharged from the Army in 1919 and later worked as a clerk with Ropes & Mattings in Nairobi, Kenya Colony, before returning to South Africa.