William Barlow

William, Bill, or Billy Barlow may refer to:

• William Barlow (bishop of Chichester) (c. 1498–1568), English cleric
• William Barlow (bishop of Lincoln) (died 1613), English Anglican priest and courtier
• William Barlow (archdeacon of Salisbury) (died 1625), Welsh churchman and writer on magnetism
• William Rudesind Barlow (1585–1656), English Benedictine monk
• William Barlow (dean of Peterborough) (1833–1908), Anglican priest

• William Henry Barlow (1812–1902), English civil engineer
• William Barlow (pioneer) (1822–1904), American pioneer in Oregon
• William Barlow (vice-chancellor) (1834–1915), Irish-Australian lawyer and academic
• William Barlow (geologist) (1845–1934), English geologist
• Billy Barlow (1870–1963), Canadian ice hockey player
• Bill Barlow (1931–2020), Canadian politician in Ontario
• William K. Barlow (1936–2022), American politician in Virginia

• William Barlow House, American historic building in Clackamas County, Oregon
• William V. N. Barlow House, American historic building in Albion, New York