John Smith

John Smith may refer to:


 * John Smith, an alias frequently used by the Doctor.
 * John Smith, a Human identity created by the Tenth Doctor (DW: Human Nature/The Family of Blood)
 * John Smith, a Human identity created by the Seventh Doctor (NA: Human Nature)
 * John Smith and the Common Men, a pop music act popular circa 1963 (DW: An Unearthly Child)