John Smith

John Smith (or similar terms) may refer to:


 * John Smith, an alias frequently used by the Doctor
 * John Smith, a human identity created by the Seventh Doctor (PROSE: Human Nature)
 * John Smith, a human identity created by the Tenth Doctor (TV: Human Nature / The Family of Blood)
 * John Smith (Master), an alias used by the Master (AUDIO: Master)
 * John Smith, alias of the Honourable Aubrey Waites, when performing music with the ironically named John Smith and the Common Men.
 * John Smith and the Common Men, a pop music act popular circa 1963 (TV: "An Unearthly Child")
 * Jonathan Smith (COMIC: The Time Machination)