Sir William Calvert (c.1703 – 3 May 1761) was a British politician.

Educated at Emmanuel College, Cambridge, he was a Member of Parliament (MP) for the City of London in 1742–1754, Sheriff of the City of London in 1743, Lord Mayor of London in 1748–1749 and an MP for Old Sarum in 1755–1761.

Parliament of Great Britain
Preceded byRobert Godschall Daniel Lambert George Heathcote Sir John BarnardMember of Parliament for the City of London 1742–1754 With: Sir John Barnard to 1761 Daniel Lambert to 1747 George Heathcote to 1747 Slingsby Bethell from 1747 Stephen Theodore Janssen from 1747Succeeded bySir John Barnard Slingsby Bethell Sir Robert Ladbroke William Beckford
Preceded byThomas Pitt of Boconnoc Viscount PulteneyMember of Parliament for Old Sarum 1755–1761 With: Viscount PulteneySucceeded byThomas Pitt of Boconnoc Howell Gwynne
Civic offices
Preceded bySir Robert LadbrokeLord Mayor of London 1748–1749Succeeded bySir Samuel Pennant