William Augustus Tilden FRS (15 August 1842 – 11 December 1926) was a British chemist.

He was unable to turn this discovery into a way to make commercially viable synthetic rubber.

[3] He held office in many other organisations, including the British Association for the Advancement of Science, the Institute of Chemistry (renamed Royal Institute of Chemistry in 1885) and the Society of Chemical Industry.

He published Famous Chemists: the men and their work (George Routledge and Sons Ltd.) in 1921.

His son, Philip Armstrong Tilden became a prominent architect.