Pages in category "Irish chiefs of the name"
The following 51 pages are in this category, out of 51 total. This list may not reflect recent changes.
I
O
- Feardorcha Ó Cellaigh
- Hugh Roe O'Donnell
- Brian O'Connor Faly
- Denis Charles Joseph O'Conor
- Owny MacRory O'More
- Felim McFiach O'Byrne
- Fiach McHugh O'Byrne
- Charles Owen O'Conor
- Denis O'Conor
- Sir Hugh O'Donnell
- Daniel O'Donoghue (Irish politician)
- Morgan John Winthrop O'Donovan
- Morgan William II O'Donovan
- Sir Fineen O'Driscoll
- Redmond O'Hanlon (outlaw)
- Pierce Charles de Lacy O'Mahony
- David O'Morchoe
- Rory Caoch O'More
- Rory O'More
- Philip O'Sullivan Beare
- Donal Cam O'Sullivan Beare
T
- Barnabas O'Brien, 6th Earl of Thomond
- Connor O'Brien, 3rd Earl of Thomond
- Donogh O'Brien, 4th Earl of Thomond
- Donough O'Brien, 2nd Earl of Thomond
- Henry O'Brien, 5th Earl of Thomond
- Henry O'Brien, 7th Earl of Thomond
- Henry O'Brien, 8th Earl of Thomond
- James O'Brien, 3rd Marquess of Thomond
- Murrough O'Brien, 1st Marquess of Thomond
- Charles O'Brien, 8th Earl of Thomond
- Charles O'Brien, 9th Earl of Thomond
- William O'Brien, 2nd Marquess of Thomond
- Hugh O'Donnell, 2nd Earl of Tyrconnell
- Rory O'Donnell, 1st Earl of Tyrconnell
- Shane O'Neill (Irish exile)