John Traill (1835–1897) was the owner of Traill's Temperance Coffee House
John Traill may also refer to:
John S. Traill (born 1939), Canadian scholar John Traill Cargill (1867–1954), Scottish oil magnate John Traill Christie (1899–1980), British headmaster Johnny Traill (1882–1958), Irish–Argentine 10-goal polo player
See also John Trail (born 1943), Australian sprint canoeist John Trailly (died 1400), English soldier and diplomat Traill (surname)