The Right Honorable The Lord Capell of Tewkesbury KB PC
Portrait by Peter Lely
First Lord of the Admiralty
In office 1679–1681
Preceded by	Prince Rupert of the Rhine
Succeeded by	The Earl of Nottingham
Member of Parliament for Tewkesbury
In office 1660–1685
Monarch	Charles II
Personal details
Born	1638 Little Hadham, Hertfordshire
Died	30 May 1696(1696-05-30) (aged 57–58) Chapelizod, County Dublin
Nationality	English
Spouse(s)	Dorothy Bennet (m. 1659)

Henry Capell, Baron Capell of Tewkesbury KB, PC (1638 – 30 May 1696) was an English politician who sat in the House of Commons between 1660 and 1692. He was then created Baron Capell.

Henry Capell was born in Hadham Parva, Hertfordshire. He was the son of Arthur Capell, 1st Baron Capell of Hadham and Elizabeth Morrison. He was baptised on 6 March 1638. His father was raised to the peerage in 1641 and he died fighting for the King in the civil wars in 1649 as one of the commanders of the Colchester garrison.^[1] Henry's eldest brother was Arthur Capell, 1st Earl of Essex.

Capel founded the Royal Botanic Gardens at Kew. Later Capel was elected Member of Parliament for Tewkesbury in the Convention Parliament. He was invested as a Knight of the Order of the Bath, on 23 April 1661. In 1661, he was re-elected MP for Tewkesbury in the Cavalier Parliament. He was a member of the Irish Privy Council, from April 1673 to March 1684/85. Capell was re-elected MP for Tewkesbury in the two elections of 1679, was a member of the English Privy Council, from 22 April 1679 to 31 January 1680, and was First Lord of the Admiralty, between 1679 and 1680.^[1]

In 1689, Capell was elected MP for Cockermouth^[1] and was Lord of the Treasury, between 1689 and 1690. He was invested again as Privy Councillor, on 14 February 1689. He was elected MP for Tewkesbury in 1690, and sat until 11 April 1692, when he was ennobled as Baron Capell of Tewkesbury, in the County of Gloucester.^[1] One year later, he became Lord Justice of Ireland and in turn a Privy Councillor of Ireland, in June 1693. In 1695 and 1696, Capell was Lord Deputy of Ireland. His term as Lord Deputy was not considered successful because of him being a firm Whig and presiding over an administration which was deeply divided between Whigs and Tories, and he did nothing to help this situation change.

Capell died aged 58 in Chapelizod, County Dublin, and was buried on 8 September 1696 in Little Hadham, Hertfordshire. The barony died with him.

On 16 February 1659, Capell married Dorothy Bennet, daughter of Richard Bennet. The marriage was childless, but did bring part of what later became Kew Palace into the Capell family, leading to its becoming known as Capel House.

Dorothy died in 1721, and through her will endowed a number of charities.