William Simpson Aston (29 March 1900 – 4 March 1974) was a British racing driver who participated in three World Championship Grands Prix, in 1952 when the championship was run to Formula Two rules, for his own team Aston Butterworth.

Prior to taking part in World Championship Grand Prix racing, Aston was a test pilot and motorcycle racer.

He came close to winning a heat race at Chimay in 1951, driving an 1,100 cc (67 cu in) Cooper, but his car failed on the last lap.

[1] In the same year he set a 500 cc (31 cu in) world speed record at Montlhéry in the streamlined Cooper, fitted with a V-twin J.A.P.

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