Máirín Bean Uí Dhalaigh[n 1] (née Nic Dhiarmada;[1] 30 November 1908 – 25 January 1994) was a scholar of the Irish language and the wife of Cearbhall Ó Dálaigh, who served as President of Ireland from 1974–76.
In 1931, while a student in University College Dublin, Nic Dhiarmada gave an address on "Women in Irish life long ago" which Philip O'Leary described in 2004 as "unapologetically feminist".[2] In 1934 she married Cearbhall Ó Dálaigh.[1] The couple had no children. In 1983, five years after her husband's death, she was appointed to the Council of State by his successor as President, Patrick Hillery.[3]