Donough O'Brien | |
|---|---|
&sq=&lang=&file=File:Donough_O%27Brien,_of_Leameneagh,_1577.jpg) Portrait of Donough, painted in 1577 on panel | |
| Born | c. 1525 Kingdom of Thomond, Ireland |
| Died | 29 September 1582 Gates of Limerick |
| Spouse(s) | Slaney McNamara |
| Issue | Conor O'Brien Margaret O'Brien Fenoli O'Brien |
| Father | Murrough O'Brien, 1st Earl of Thomond |
| Mother | Eleanor FitzGerald |
&sq=&lang=&file=File:Slaney_O%27Brien_1577.jpg)
Donough O'Brien (Irish: Donnchadh Ó Briain) (died 29 September 1582) was the third son of Murrough O'Brien and the ancestor of the Leameneagh branch of that family.