Hélias de Saint-Yrieix (died 1367) was a French Benedictine abbot, papal judiciary official, bishop and Cardinal.
[6] In November 1351, he took part in a provincial council[7] held by Pierre de la Jugié, Archbishop of Narbonne, in Beziers.
[9] He was created cardinal priest of Stefano al Monte Celio by Pope Innocent VI in the consistory of 23 December 1356.
[10] Shortly after 10 May 1363, he was promoted suburbicarian bishop of Ostia by Pope Urban V.[11] In 1357, he was one of several cardinal-judges in the case of Richardus Armachanus,[12] (Richard Fitz Ralph, Archbishop of Armagh).
[14] On, or shortly before, 4 March 1365, Bishop Hélias of Ostia resigned the benefice of Prior of the Benedictine church of Ispaniaco (diocese of Mende).