Henry Pelham-Clinton, 4th Duke of Newcastle

His Grace The Duke of Newcastle KG
The 4th Duke of Newcastle-under-Lyme
Lord Lieutenant of Nottinghamshire
In office 1809–1839
Preceded by	The Duke of Portland
Succeeded by	The Earl of Scarbrough
Personal details
Born	Henry Pelham Fiennes Pelham-Clinton (1785-01-31)31 January 1785
Died	12 January 1851(1851-01-12) (aged 65) Clumber Park
Resting place	All Saints' Church, West Markham
Nationality	British
Spouse	Georgiana Elizabeth Mundy ​ ​ (m. 1807; died 1822)​
Children	Lady Anna Maria Pelham-Clinton Lady Georgiana Pelham-Clinton Henry Pelham-Clinton, 5th Duke of Newcastle Lady Charlotte Pelham-Clinton Lord Charles Clinton Lord Thomas Charles Pelham-Clinton Lord William Pelham-Clinton Lord Edward Pelham-Clinton Lord John Pelham-Clinton Lady Caroline Augusta Ricketts Lady Henrietta D'Eyncourt Lord Robert Pelham-Clinton Lord George Pelham Clinton
Parent(s)	Thomas Pelham-Clinton, 3rd Duke of Newcastle-under-Lyne Lady Anna Maria Stanhope
Education	Eton College

Henry Pelham Fiennes Pelham-Clinton, 4th Duke of Newcastle-under-Lyne KG (31 January 1785 – 12 January 1851) was a British nobleman and politician who played a leading part in British politics in the late 1820s and early 1830s. He was styled Lord Clinton from birth until 1794 and Earl of Lincoln between 1794 and 1795.