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John Houghton may refer to:

Politicians

• John Houghton (fl.1393), MP for Leicester (UK Parliament constituency)
• John Houghton (died 1583) (before 1522–1583), MP for Stamford (UK Parliament constituency)
• John Houghton (Manx politician)
• John Houghton (Zimbabwean politician)

Others

• John Houghton (physicist) (1931–2020), Welsh atmospheric physicist
• John Houghton (martyr) (c. 1486–1535), English Catholic priest and martyr
• John Houghton (apothecary) (1645–1705), English writer, apothecary and merchant
• John Houghton (footballer), New Zealand international footballer
• John Houghton (footballer born 1891) (1891–1991), English footballer
• John Houghton (rugby league) (fl. 1970), former St Helens RLFC rugby player