Dowie
Dowie—This name is a shortened form of MacIlDowie & McGildowie. (MacGiolla-Dhubhthaigh). From St. Dubhthach—Son of the Servant of St. Dubhthach—Doey in Antrim and Duthie in Scotland are other shortened anglicisations.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees