John Watney (27 January 1834 – 25 March 1923) was Honorary Secretary of the City and Guilds of London Institute for the Advancement of Technical Education.
He was the eldest son of John Watney and Susannah Dormay of Mitcham, Surrey. His uncle was James Watney, brewer and one time Master of the Mercers' Company. He was educated at Harrow and became a solicitor in 1857. In 1864 he married Elizabeth Dendy.
- 1871 Some account of St. Osyth's priory, Essex, and its inhabitants London: Waterlow, privately printed
- 1892 Some Account of the Hospital of St. Thomas of Acon, in the Cheap, London, and of the Plate of the Mercers' Company (2nd edition 1906)
- 1893 Some account of Leigh Place, Surrey, and its owners London: Roworth
- 1896 Some account of Mercers' school London: Blades
- 1906 Popular Natural History London: East & Blades
- 1914 An account of the Mistery of Mercers of the city of London, otherwise the Mercers' Company
- 1914 History of the Mercers' company of the city of London London: East & Blades
- 1920 A Short Account of the Mercers' Company of London Compiled by Sir John Watney.
- Edward Walford E. (1919), The county families of the United Kingdom; or, Royal manual of the titled and untitled aristocracy of England, Wales, Scotland, and Ireland, Volume 59
- Treloar W., (1920), A Lord Mayor's Diary London: John Murray
- The London Gazette, 17 July 1900