William Armand Thomas "Tristan" Garel-Jones, Baron Garel-Jones, PC was a British politician. A member of the Conservative Party, he served as the Member of Parliament (MP) for Watford from 1979 to 1997, before being made a life peer in 1997.

Watford is a constituency represented in the House of Commons of the UK Parliament since 2019 by Conservative Party MP Dean Russell.