Duncan (disambiguation)

Duncan could refer to:
 * King Duncan, a character in Macbeth
 * The actor who played King Duncan as part of the Karidian Company


 * Performers
 * Lee Duncan, who played Lt. Evans in "Elaan of Troyius"
 * Duncan K. Fraser, who appeared as Engineer Walsh on Star Trek: Enterprise
 * Robert Duncan McNeill, the actor known for playing Tom Paris
 * Duncan Regehr, the actor who played Ronin on TNG and Shakaar Edon on DS9