| Honorific-Prefix: | The Right Honourable |
| Lord Charles Spencer | |
| Honorific-Suffix: | PC |
| Office1: | Joint Postmaster General |
| Term Start1: | 1801 |
| Term End1: | 1806 |
| Monarch1: | George III |
| Office2: | Master of the Mint |
| Term Start2: | 1806 |
| Term End2: | 1806 |
| Monarch2: | George III |
| Primeminister2: | William Pitt the Younger |
| Predecessor2: | The Earl Bathurst |
| Successor2: | Charles Bathurst |
| Birth Date: | 1740 3, df=yes |
| Nationality: | British |
| Children: | Robert Spencer John Spencer William Robert Spencer |
| Parents: | Charles Spencer, 3rd Duke of Marlborough Hon. Elizabeth Trevor |
Lord Charles Spencer PC (31 March 1740 – 16 June 1820) was a British courtier and politician from the Spencer family who sat in the House of Commons between 1761 and 1801.
Spencer was born on 31 March 1740. He was the second son of Charles Spencer, 3rd Duke of Marlborough, and the Hon. Elizabeth Trevor, daughter of Thomas Trevor, 2nd Baron Trevor. George Spencer, 4th Duke of Marlborough, was his elder brother.[1]
Spencer sat as Member of Parliament for Oxfordshire from 1761 to 1790 and 1796 to 1801[2] and was sworn of the Privy Council in 1763.
He served as Comptroller of the Household from 1763 to 1765, as a Junior Lord of the Admiralty from 1768 to 1779 and as Treasurer of the Chamber from 1779 to 1782, when that sinecure post was abolished. He was later Postmaster General from 1801 to 1806 and Master of the Mint in 1806. From 1806 until his death, he was a Gentleman of the Bedchamber to George III.[3]
On 2 October 1762, Spencer was married to Lady Mary Beauclerk (1743–1812), a daughter of Vere Beauclerk, 1st Baron Vere and the sister of Aubrey Beauclerk, 5th Duke of St Albans.[4] Together, they had three sons:[5]
Lady Spencer died in January 1812 aged 68. Charles survived her by eight years and died in June 1820, aged 80.[1]
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