John Calvert

John Calvert may refer to:


 * John Calvert (1726–1804), British politician, MP for Tamworth, Wendover and Hertford
 * John Calvert (died 1844) (c. 1758–1844), British politician, MP for Tamworth, Huntingdon, St Albans and Malmesbury
 * John Calvert (mine owner) (1812–1890), Yorkshireman who came to South Wales as a civil engineering contractor and became an important developer of the Rhondda coalfield
 * John Calvert (magician) (1911–2013), American magician
 * John Calvert (radio executive), radio commercials producer and voiceover artist
 * John Calvert Griffiths, attorney general of Hong Kong
 * John Calvert (scholar), American scholar of Islamism at Creighton University