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Donnchadh is a Gaelic masculine given name and is common to both the Irish and Scottish Gaelic languages. It is composed of the elements donn, meaning "brown"; and chadh, meaning "chief" or "noble".[1] The name is also written as Donnchad, Donncha, Donnacha, Donnchadha and Dúnchad. In English it is pronounced "Dun-uhh-kah" or "Done + Acka".

Modern versions include (in Ireland) Donagh, Donough, Donogh and (in Scotland) Duncan. Also anglicised as Dennis or Denis and Dionysius.

The surnames Donough, McDonagh, McDonough, O'Donoghue and Dunphy among others are derived from the given name (In Gaelic: Mac - son of, Ó - of the family of). Another derivation is the name of the Scottish Clan Donnachaidh.


Old Irish Modern Irish Hiberno-English Scottish Gaelic Scottish English
Donnchad(h) Donncha Donagh Donnchadh


  • In modern times people with the name include;

Historically, it can refer to the following:

See also[edit]


  1. ^ Hanks, Patrick; Hodges, Flavia (2006). Hardcastle, Kate (ed.). Oxford Dictionary of Names (2nd ed.). Oxford: Oxford University Press. pp. 81, 402. ISBN 978-0-19-861060-1.