Duncan could refer to:
- Duncan, a character in Macbeth
- Karidian Company of Players#King Duncan, the actor who played King Duncan as part of the Karidian Company
- 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
|This is a disambiguation page; that is, one that points to other pages that have the same or a similar name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.|