Fiach McHugh O'Byrne

Fiach mac Aodha Ó Broin
Fiach MacHugh O'Byrne
Lord of "Clann Uí Bhroin"
The armorial achievements of Fiach McHugh O'Byrne
Reign1579–1597
Coronation1587, County Wicklow
PredecessorAodh mac Seáin Ó Broin
SuccessorFéilim mac Fiach Ó Broin
Bornc.1534
Ballinacor
Died(1597-05-08)8 May 1597
Farranerin, County Wicklow
SpouseRose Ó Tuathail (second wife)
HouseBallinacor – Ranelagh

Fiach mac Aodha Ó Broin (anglicised as Feagh or Fiach MacHugh O'Byrne) (1534 – 8 May 1597) was Chief of the Name of Clann Uí Bhroin (Clan O'Byrne) and Lord of Ranelagh during the Elizabethan wars against the Irish clans.