'''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 <!-- * John Smart (entomologist) (1907–1986) British zoologist --><!-- needs valid blue link --> ==See also== * Jack Smart (disambiguation)
{{hndis|Smart, Jack}}