William Beckford (1709-1770) was a well-known political figure in 18th century London, and twice held the office of Lord Mayor of London.

Beckford was born in Jamaica, and was sent back to England by his family in 1723 to be educated. He studied at Westminster School, and made his career in the city. He became an alderman in 1752 and MP for the City of London in 1753. His son, William Thomas Beckford, was a successful writer.