Joseph Barker

• Joseph Barker (Massachusetts politician), American Congregationalist minister and U.S. Representative from Massachusetts
• Joseph Barker (mayor), American mayor of Pittsburgh remembered for his nativist and anti-Catholic activism
• Joseph Barker (minister), English preacher, author, and controversialist
• Joseph Barker (priest), Anglican priest in South Africa
• Joseph [Scott Barker], American Episcopal clergyman
• Joseph [Warren Barker], American electrical and mechanical engineer