Rúaidhrí de Valera (3 November 1916 – 28 October 1978) was an Irish archaeologist most known for his work on the megalithic tombs of his country.
De Valera took a Bachelor of Arts degree in Celtic studies from University College Dublin in 1939, before serving briefly in the Irish Army and then lecturing at the National University of Ireland at Maynooth for one year until 1943.
He then studied for an MA in archaeology, writing his thesis on the prehistoric tombs of County Clare.
In 1957, de Valera was appointed Chair of Celtic Archaeology at University College Dublin where he worked to enlarge the department whilst continuing to publish on Irish chamber tombs, especially the Court cairns which he proposed first developed in the west of the country.
[3] He died suddenly on 28 October 1978, while visiting the Fermanagh County Museum in Enniskillen, Northern Ireland.