| Honorific-Prefix: | The Right Honourable |
| The Lord Chesham | |
| Office1: | Deputy Chief Whip of the House of Lords Captain of the Queen's Bodyguard of the Yeomen of the Guard |
| Primeminister1: | John Major |
| Term Start1: | 8 July 1995 |
| Term End1: | 3 May 1997 |
| Predecessor1: | The Lord Inglewood |
| Successor1: | The Lord McIntosh of Haringey |
| Office2: | Member of the House of Lords Lord Temporal |
| Term Start2: | 23 December 1989 |
| Term End2: | 11 November 1999 hereditary peer |
| Predecessor2: | 5th Baron Chesham |
| Successor2: | seat abolished (House of Lords Act 1999) |
| Birth Date: | 7 November 1941 |
| Party: | Conservative |
Nicholas Charles Cavendish, 6th Baron Chesham (7 November 1941 – 27 August 2009), was a British Conservative politician.
A member of the Cavendish family headed by the Duke of Devonshire, Chesham was the son of John Cavendish, 5th Baron Chesham and Mary Edmunds Marshall. He took his seat in the House of Lords on his father's death in 1989, and served as Captain of the Yeomen of the Guard (Deputy Chief Government Whip in the House of Lords) from 1995 to 1997 in the Conservative administration of John Major. However, he lost his seat in the House of Lords after the passing of the House of Lords Act 1999, which removed the automatic right of hereditary peers to sit in the upper chamber of Parliament. He married first on 4 November 1965 to Susan Donne Beauchamp. They divorced in 1969. Nicholas then married Suzanne Adrienne Byrne, in 1973. He died on 27 August 2009.[1]
They had two sons: