Duncan
DUN-kan
A rugged Scottish name associated with a brown-haired warrior or chief.
Meaning
The name is generally linked to the Gaelic Donncha/Donnach, which Charnock explains as from elements meaning “brown-haired” and “warrior” or “dog,” giving the sense of a brown-haired fighter. One 1884 source also glosses Duncan as “brown chief,” and another notes it as a Scottish surname and suggests the idea of a “powerful chieftain.”
Origin
GaelicScottishmasculine
Fun fact
The surname Duncan appears in Scottish records early enough that Annabel Fitz Duncan carried it into another family line in 1158.
Confidence: mixed. Sources: History of Christian Names, Praenomina; or, the etymology of the principal Christian names of Great Britain and Ireland.