Duncan (disambiguation)

Duncan is a given name that can refer to:
 * Duncan Inglebee, a Beater for the Ravenclaw Quidditch team during the 1993-1994 school year

Behind the scenes
Real-world individuals with the given name Duncan include:
 * Duncan Wisbey, provided the voice of a Death Eater in the video game adaptation of Harry Potter and the Goblet of Fire