John Barker
John Barker may refer to:
Business
- John Barker (advertising executive), founder of Barker/DZP
- John Barker (businessman), Australian
- John H. Barker, American businessman, owner of the John H. Barker Mansion in Michigan City, Indiana
Politics
- John Barker (died 1589), MP for Ipswich
- John Barker (died 1618), MP for Shrewsbury
- John Barker (Bristol MP), English politician
- Sir John Barker, 4th Baronet, English MP for Ipswich
- John Barker (diplomat), English diplomat and horticulturist
- Sir John Barker, 1st Baronet, founder of Barkers department store in Kensington, London, and Liberal MP
- John Barker (MP for Ilchester), English merchant and politician
- John Barker (Parliamentarian), English draper and politician, MP for Coventry
- John Barker (parliamentary officer), clerk of the colonial Victorian parliament
- John Barker (Australian politician)
- John Barker (Philadelphia), Mayor of Philadelphia, Pennsylvania from 1807 to 1810 and 1812–1813
- John Barker (Kansas politician), member of the Kansas House of Representatives
- John Barker, author and member of the militant group The Angry Brigade
Religion
- John Barker (minister), Presbyterian divine
- John Barker (Master of Christ's College, Cambridge), priest and academic
- John Barker (priest), Dean of Cloyne
Sports
- John Barker (Australian footballer), for Hawthorn, Brisbane Lions, and Fitzroy
- John Barker (English footballer)
- John Barker (Scottish footballer)
Other
- John Barker (scholar), Old Etonian logician
- John Barker (died 1653), English ship-owner
- John Barker (medical writer), medical writer
- John William Barker, American general
- John Barker (RAF officer), commander of the Royal Ceylon Air Force
- John Barker (architect), Australian architect
- John Barker (filmmaker), South African filmmaker
- John W. Barker, American historian
- John Barker (ballet), American dancer, ballet teacher and translator
- John Barker, psychiatrist who set up the British Premonitions Bureau