William Barlow
William Barlow is the name of the following people:
- William Barlow (Bishop of Chichester) († 1568), British bishop
- William Barlow (Bishop of Lincoln) († 1613), British bishop
- William Barlow (geologist) (1845-1934), British geologist
- William Henry Barlow (1812–1902), British architect, chairman of the British Association of Engineers and specialist in bridge construction