US Popularity Rank: 1937

Origin: Scottish

Meaning: Brown or dark warrior; Brown or dark-haired chief

Duncan is a baby boy name of Scottish origin. Meaning “brown or dark warrior” or “brown or dark-haired chief,” this Anglicized baby name links to Scottish heritage. Duncan derives from the last name Donnachadh. Duncan has also become a name for towns and cities across the United States and Canada. From the Medieval Era and Shakespearean tales to modern society, the name Duncan can inspire a baby to be brave and resilient through every challenge.