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

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.