William Doran (/ˈdɒrən/, 12 November 1916 – 9 September 1973) was an English professional Grand Prix motorcycle road racer. He started racing in 1946, finishing in twenty-third position in his first Manx Grand Prix and placed second in the 1948 Senior TT race on private Nortons.
He became a works AJS rider from 1949, winning the 1949 Belgian Grand Prix on an AJS Porcupine, until his retirement after suffering a head injury in a serious crash in August 1953 at Rouen.
His best season was in 1951 when he won the Dutch TT and finished the year second to Geoff Duke in the 350cc world championship. Doran won two Grand Prix races during his career.
Doran had part of the Isle of Man TT course named after him. He was proud because, at the time of dedication, he was the only living recipient with a named section. He crashed during a Thursday evening practice for the 1952 Isle of Man TT riding an AJS motorcycle resulting in a broken leg. The accident occurred on the left-hand bend after Ballig Bridge and was renamed Doran's Bend.
After retirement from racing in 1954 he opened a motorcycle business in Wellington, Shropshire, with former AJS race-chief Matt Wright, selling new motorcycles collected from the Birmingham factories in a pick-up vehicle driven by Doran's wife Peggy, whom he married in 1955. Isetta and Messerschmitt three-wheelers were also collected from Luton airport.
Partner Matt Wright retired in 1967, leaving Doran in the business which he developed into petrol sales, with the later acquisition of two further nearby sites.