John Alleyne

John Alleyne or John Alleyn may refer to:


 * Sir John Alleyne, 1st Baronet (1724–1801), Speaker of the House of Assembly of Barbados
 * Sir John Alleyne, 3rd Baronet (1820–1912), British businessman and engineer
 * John Alleyne (cricketer) (1908–1980), Australian cricketer
 * John Alleyne (dancer) (born 1960), Canadian ballet dancer and choreographer
 * John Alleyne (priest) (fl. 1466–1506), Dean of St Patrick's Cathedral, Dublin
 * John Alleyn (barrister) (1621–1663), English barrister and MP
 * John Alleyn (mercer) (died 1544), Lord Mayor of London
 * John Alleyn (surgeon) (died 1686) English surgeon and schoolmaster
 * John Alan, Alen, or Alleyn (c. 1500–1561) English government official in Ireland