Sir Theobald Butler, 1st Baron Cahir, Caher, or Cahier (died 1596) was the first baron Cahir of the second creation, which occurred in 1583.
Theobald was the eldest son of Piers Butler and his wife, née Butler, whose first name is unknown. His father was the younger brother of Thomas Butler, 1st Baron Cahir of the first creation. His father's family, the Butlers of Cahir (also spelt Caher or Cahier) were a cadet line of the Butlers of Ormond that started with James Gallda Butler, a younger son of James Butler, 3rd Earl of Ormond. His mother was a daughter of MacPierce, Lord Dunboyne.
His father, Piers Butler, felt that he was oppressed by Ormond and sided in 1565 with Gerald FitzGerald, 14th Earl of Desmond fighting on the losing side against the Ormonds in the Battle of Affane.
Butler married Mary Cusack, daughter of Sir Thomas Cusack of Cussington, County Meath, Lord Chancellor of Ireland, and his second wife Maud Darcy.
Theobald and Mary had six sons:
âÂÂand two or three daughters:
In 1567 Butler was knighted at Clonmel by Henry Sidney, who had been appointed lord deputy of Ireland in 1565.
Butler was the nephew of Thomas Butler, 1st Baron Cahir (of the first creation, which occurred in 1542). When Butler's first cousin Edmund, the 2nd Baron, died without issue in 1560, the title became extinct. It was, however, revived on 6 May 1583 by Queen Elizabeth I of England in Butler's favour. He became the 1st Baron Cahir (of the second creation) and ruled much of the barony of Iffa and Offa West.
Cahir died on 28 April 1596 at Cahir, County Tipperary. He was succeeded by his eldest son Thomas as the 2nd Baron Cahir of the second creation.