John Smart (disambiguation)
John Smart
(1740–1811) was an English painter of portrait miniatures.
John Smart
may also refer to:
John Smart (landscape artist)
(1838–1899), Scottish painter
John Elliott Smart
(1916–2008), officer in the Royal Navy
John Smart (skier)
(born 1965), Canadian freestyle skier
John Karefa-Smart
(1915–2010), politician from Sierra Leone