| John Spencer | |
| Constituency Mp1: | Wilton |
| Term Start1: | 12 February 1801 |
| Term End1: | 24 May 1804 |
| Predecessor1: | Philip Goldsworthy |
| Successor1: | Ralph Sheldon |
| Birth Date: | 21 December 1767 |
| Death Place: | Breda |
| Education: | Harrow School |
| Father: | Lord Charles Spencer |
| Relatives: | George Spencer (father-in-law) |
John Spencer was a British Politician who served as MP for Wilton from 1801 to 1804. He was the son of Lord Charles Spencer.He married his cousin, Lady Elizabeth Spencer, the daughter of George Spencer, 4th Duke of Marlborough in 1790.[1]