John William Egerton, 7th Earl of Bridgewater FRS (14 April 1753 – 21 October 1823), known as John Egerton until 1803, was a British cavalry officer, and Tory politician who sat in the House of Commons from 1777 to 1803 when he succeeded to the peerage as Earl of Bridgewater.

He remained colonel of the 14th Dragoons for the rest of his life and was promoted major-general in 1795, lieutenant-general in 1802 and full general in 1812.

[2] On 14 January 1783 he had married Charlotte Catherine Anne (died 1849 aged 85[3]), only daughter and heir of Samuel Haynes.

Egerton left his estates in Bedfordshire, Buckinghamshire, Cheshire, Durham, Flintshire, Hertfordshire, Middlesex, Northamptonshire, Oxfordshire, Shropshire and Yorkshire to John, Viscount Alford, provided he had managed to become Duke or Marquess of Bridgwater with a suitable remainder.

However his heir got the clause declared illegal, so the 2nd Earl Brownlow commenced a damaging and lengthy case of litigation that in 1851 resulted in the Egerton family forfeiting the estates.