Calthorpe is a surname. Notable people with the surname include:
Anne Calthorpe (died between 1579 and 1582), Countess of Sussex
Sir Charles Calthorpe (c.1540–1616), English-born judge in Elizabethan and early Jacobean Ireland
David Calthorpe (born 1973), former Australian rules footballer
Freddie Calthorpe (1892–1935), English cricketer
James Calthorpe of Cockthorpe (c. 1558–1615), Sheriff of Norfolk in 1614
James Calthorpe (Yeoman of the Removing Wardrobe) (1699–1784), English politician and courtier
Sir Henry Calthorpe (1586–1637), English lawyer
Sir Henry Calthorpe (died 1788) of Elvetham in Hampshire, a Knight of the Bath and a Member of Parliament for Hindon
Isabella Calthorpe, stage name of Isabella Anstruther-Gough-Calthorpe (born 1980), English actress and model
Sir James Calthorpe of East Barsham (1604–1652), Sheriff of Norfolk in 1643
Sir James Calthorpe (Roundhead) (died 1658), Sheriff of Suffolk, knighted by the Lord Protector Olive Cromwell
Mena Calthorpe (1905–1996), Australian writer
Peter Calthorpe (born 1949)], architect and urban designer and planner
Reynolds Calthorpe (1655–1719) of Elvetham in Hampshire, Member of Parliament for Hindon
Reynolds Calthorpe, the younger (1689–1714), Member of Parliament for Hindon
Somerset Gough-Calthorpe (1865–1937), English admiral of the fleet, sometimes known as Somerset Calthorpe
William Calthorpe (1410–1498), English aristocrat and Knight of the Bath
See also
Baron Calthorpe