William Alexander Ayton (28 April 1816 – 1 January 1909) was a British Anglican clergyman with an interest in alchemy. He was Vicar of Chacombe (in Northamptonshire) from 1873 to 1894. In 1894 he retired on a small pension, and he died at Saffron Walden (in Hertfordshire) in 1909. He translated from Latin the life of John Dee written by Thomas Smith. Ayton became a vegetarian in 1868 after visiting the family of his friend Joseph Wallace. Ayton converted to Wallace's dietary system.