Ó Donnchadha

== Irish == === Etymology === From Ó + Donncha, Donnchadh (given name). === Proper noun === Ó Donnchadha m (genitive Uí Dhonnchadha) a male surname originating as a patronymic, feminine equivalent Ní Dhonnchadha ==== Related terms ==== Mac Donnchadha ==== Descendants ==== → English: Donoghue, Donohoe, O'Donoghue === Mutation === === Further reading === MacLysaght, Edward (1985), “(O) Donoghue, Donohoe”, in The Surnames of Ireland, sixth edition, Dublin: Irish Academic Press, →ISBN, page 86; reprinted 1999