John Ellicott (London, 1706–1772), was an eminent English clock and watchmaker of the 18th century.
His father, a Cornishman, John Ellicott (-1733), was also a clockmaker and had been admitted to the Clockmakers' Company in 1696. John Ellicott (jnr) conducted business first from Austin Friars Street EC2 and later from Swithin’s Alley, Royal Exchange, and in 1738 was elected Fellow of the Royal Society. He showed a keen interest in scientific matters and maintained an observatory at his home in Hackney. He was best known for his work on temperature compensated pendulums and his use of the cylinder escapement. His quality workmanship led to an appointment as Clockmaker to George III.
- "Fine And Interesting Antique Clocks » JOHN ELLICOTT mahogany striking table clock, circa 1770". Carter Wright. Archived from the original on 2011-09-11. Retrieved 2010-08-27.
- "John Ellicott — Clock - 1740 - 1750". Davidrumsey.com. Retrieved 2010-08-27.
- Baillie, G. H. (January 2006). Watchmakers and Clockmakers of the World — G. H. Baillie. ISBN 9781406791136. Retrieved 2010-08-27.
- "Webster Signature Database Search Results". historydb.adlerplanetarium.org.