Sir William Humfreys, 1st Baronet (also spelled Humphreys; died 26 October 1735), was a British ironmonger and politician who sat in the House of Commons from 1715 to 1722. He was Lord Mayor of London for 1714–15 and a Director of the Bank of England between 1719 and 1730.
He was the only son of ironmonger Nathaniel Humfreys of Candlewick Street, London. His father was the second son of William Ap Humfrey, of Penrhyn, Montgomeryshire. He followed his father into the ironmongery trade of London, and was Master of the Worshipful Company of Ironmongers in 1705. He became an oilman and drysalter in Poultry, London, living afterwards in Bloomsbury Square.
Humfreys was Sheriff of London, 1704–05, and was knighted on 26 October 1704. He was Alderman of Cheap Ward from 29 July 1707, and of Bridge Without from 25 January 1733 until his death. From 1711 to 1715, he was a Director of the East India Company. He was Lord Mayor of London for 1714–15, and in that capacity officiated on 20 October 1714 at the Coronation of the British monarch, George I of Great Britain, entertaining the King and his court at Guildhall, London. He was created a baronet in the baronetage of Great Britain on 30 November 1714.
He was Member of Parliament in the Parliament of Great Britain for Marlborough from 1715 to 1722. and a Director of the Bank of England in 1719-21, 1722–25, 1726–27 and 1728-30. He was President of Bridewell and Bethlehem Hospitals, Lord of the Manors of Barking and Dagenham.
He married firstly Margaret Wintour, daughter of William Wintour of Dymock, Gloucestershire with whom he had a son, Orlando. She died on 19 August 1704, and was buried at St Mildred, Poultry. He married secondly, on 6 January 1705 at Knightsbridge Chapel, Ellen, the widow of Col. Robert Lancashire of London. He had no issue by his second wife, who died on 25 March 1732.
He died on 26 October 1735, and was buried on 6 November 1735 at St Mildred, Poultry. He was succeeded by his only son, Orlando, who married Ellen Lancashire, his stepmother's daughter by her first husband. Orlando died without surviving male issue on 14 June 1737, his only son (Robert) having died a few months before on 17 January; the baronetcy thus became extinct. His widow died on 3 April 1745. In the complicated family circumstances Hever Castle was sold in 1749 to Timothy Waldo.
- Cokayne, George Edward (1906) Complete Baronetage. Volume V. Exeter: W. Pollard & Co. LCCN 06-23564. pp. 21–22
- "HUMFREYS, Sir William, 1st Bt. (c.1651-1735), of Barking, Essex". History of Parliament Online. Retrieved 18 August 2018.
- "Chronological list of aldermen: 1701-1800". British History Online. Retrieved 4 January 2018.
- "Hever Castle". Hever Castle Ltd. Retrieved 22 October 2018.
|Parliament of Great Britain|
| Member of Parliament for Marlborough
1715 – 1722
With: Joshua Ward to 1717
Gabriel Roberts from 1717
Earl of Hertford
Sir Samuel Stanier
| Lord Mayor of London
Sir Charles Peers
|Baronetage of Great Britain|
|New title|| Baronet