John Horsley may refer to:

• John Horsley (antiquarian) (1685–1732), British antiquarian
• John Callcott Horsley (1817–1903), English painter
• John Horsley (actor) (1920–2014), English actor
• John Horsley (MP) for Worcestershire (UK Parliament constituency)

• Death-Ogremon
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• Death on the Road (album)
• Death on the Rock
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• Death penalty in the United States
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• Death-Qualified Jury
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• Death rate
• Death rates
• Death rates in the 20th century
• Death rattle