Duncan Harcourt (ダンカン・ハーコート, Dankan Hākōto?) is a non-playable character in Final Fantasy VI. He is a skilled martial arts master. His sprite is the same as Banon's, but with the same color scheme as Locke.
Duncan ran a dojo outside of South Figaro near Mt. Kolts where he trained students in the martial arts. His two star pupils were his son Vargas and Sabin Rene Figaro. Sabin and Vargas were in a major rivalry, and argued over who would take Duncan's place as the new master. Each one insisted that Duncan favored the other. Vargas, convinced Sabin was to be chosen, apparently killed his father.
When they pass through South Figaro, the player party learns of this from Duncan's wife (an old man outside Duncan's cabin will tell the party also), and ventures to Mt. Kolts, where Vargas gets his comeuppance from Sabin, when he uses a Blitz technique on him.
Duncan did not die and the party can meet him in the World of Ruin, where he trains at his dojo now northeast of Narshe. It is here where he teaches Sabin his ultimate Blitz: the Phantom Rush. There is a glitch that can be triggered if the player visits him before recruiting Sabin.
- Duncan Harcourt was created by Kaori Tanaka, who also worked on the PlayStation game Xenogears. In that game, there is a character named Sigurd Harcourt. His brother of Bartholomew Fatima, a descendant of a character named Roni Fatima. Roni has a brother named Rene. Together, they live in a high-tech desert kingdom and possess a fortress that can travel through the sand. Harcourt, Roni, Rene, their desert kingdom and their mobile sand fortress are all homages to Final Fantasy VI.
- In the Dawn of Souls and 20th Anniversary remakes of the original Final Fantasy, Duncan is one of the automatic names the player can choose for the Monk Job.
- One of non-playable characters in Final Fantasy XIII-2 is named Duncan.