Elizabeth Darcy, Countess of Ormond

Elizabeth Butler (nee Darcy), Countess of Ormond (3 April 1332 – 24 March 1390) was the wife of Irish peer James Butler, 2nd Earl of Ormond, and the mother of his six children, including James Butler, 3rd Earl of Ormond.

Elizabeth Darcy was born on 3 April 1332 at Platten, County Meath, Ireland, the daughter of Sir John Darcy, 1st Baron Darcy de Knayth, Justiciar of Ireland, and his second wife Joan de Burgh. Sir John was a veteran of the Battle of Crecy. He held the offices of Constable of Nottingham Castle, Constable of the Tower of London, and Sheriff of Lancashire. From 1341- 1346, he was Chamberlain to King Edward III.

Elizabeth had a brother Sir William Darcy, who married Catherine FitzGerald, by whom he had issue. She also had numerous half-siblings from her parents' previous marriages. Her father's first wife was Emeline Heron, by whom he had eight children, including his heir, John Darcy, 2nd Baron Darcy of Knaith. Elizabeth's mother's first husband had been Thomas FitzGerald, 2nd Earl of Kildare, by whom she had three sons, John FitzGerald, Richard FitzGerald, 3rd Earl of Kildare, and Maurice FitzGerald, 4th Earl of Kildare.

Elizabeth's paternal grandparents were Roger Darcy and Isabel d'Aton, and her maternal grandparents were Richard de Burgh, 2nd Earl of Ulster and Margaret de Burgh, daughter of Sir John de Burgh and Cecily de Balliol.

One of her maternal aunts was Elizabeth de Burgh, the second wife of Robert the Bruce.