John Dormer may refer to:
Sir John Dormer (of Dorton) (died 1629) English MP for Clitheroe and Aylesbury John Dormer (Parliamentarian) (c. 1611–1679) English MP for Buckingham Sir John Dormer, 1st Baronet (c. 1640–1675), of the Dormer baronets John Dormer (Jesuit) (1636–1700), English Jesuit John Dormer, 7th Baron Dormer (1691–1785), Baron Dormer John Baptist Joseph Dormer, 12th Baron Dormer (1830–1900), Baron Dormer
See also Dormer (surname)