This interesting surname, found in England, Scotland and Ireland, has a number of possible origins. Firstly, it may be of
Anglo-Saxon origin, from the
Olde English pre 7th Century and
Middle English "dunn", meaning "dull, brown, dark-coloured", and was a
nickname for a man with dark hair or a swarthy complexion. It may also have originated from an unrecorded Middle English survival of an Olde English
byname, "Dunna", dark. Secondly, the surname is widespread in Ireland, where it is the
Anglicized form of the
Gaelic "O'Duinn, Doinn", composed of the Gaelic
prefix "O", male descendant of, and the
personal name "Duinn, oinn", from "donn", black, brown, a byname given to someone with dark hair or swarthy complexion, as above. In Ireland the name is usually spelt "Dunne", and the
sept originated in County Leix and formed one of the principal families of
Leinster where their chief was the Lord of Iregan; they were especially mentioned in mid 16th Century documents as hostile and dangerous to the English interest. Those who spelt their name Dunn usually came from Ulster, where they were possibly of Scottish extraction. Finally, in Scotland, the surname also derives from this
Celtic origin, but may also be
locational from the lands of Dun, Tayside (Angus), which derives from "dun", fort. Early recordings include William Dun (1180, Gloucestershire), John
le Dun (1198, Hertfordshire), and Adam
de Dun (1255, Scotland). A
Coat of Arms granted to a Dunn Family in Bircher, near Leominster, depicts quarterly first and second
silver, a
gold wolf salient, second and third,
black three round gold buckles, tongues downward. The first recorded spelling of the family name is shown to be that of Gillananaomh O'Duinn, which was dated 1102, in the "Ancient Irish Records", during the reign of Irish
High Kings in Opposition, 1103 - 1169. Surnames became necessary when governments introduced personal taxation. In England this was known as
Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing
variants of the original spelling.