John Horner

John Horner may refer to:

• John Francis Fortescue Horner (1842–1927), British barrister
• John M. Horner (1821–1907), founder of Union City, California
• John R. Horner (born 1946), American paleontologist
• John S. Horner (1802–1883), American politician
• John Horner (British politician) (1911–1997), British firefighter, trade unionist and politician
• John Horner (organist) (1899–1973), organist, choirmaster and music teacher in South Australia
• John Horner (police officer), American chief of police of Los Angeles in 1885
• John Horner (Rector of Lincoln College, Oxford) (1792–?), Oxford college head
• Jack Horner (1927–2004), Canadian rancher, politician and cabinet minister

• John Horner, in "The Adventure of the Blue Carbuncle", a Sherlock Holmes story by Sir Arthur Conan Doyle

• Jack Horner (disambiguation)
• Johan Hörner (1711–1763), Swedish-born Danish painter
• Johann Caspar Horner (1774–1834), Swiss physicist and astronomer
• Johann Friedrich Horner (1831–1886), ophthalmologist