(Anglicised: Donatus O'Murray; died 1485) was a fifteenth-century Archbishop of Tuam.

An Augustinian Canon, he was the Dean of Tuam before appointed Archbishop of Tuam by Pope Nicholas V on 2 December 1450.

[1][2][3] He granted the status of collegiate church to the St. Nicholas' Collegiate Church in Galway in 1484.

[4] Archbishop Ó Muireadhaigh died in office on 17 January 1485.

This article about a Roman Catholic archbishop from Ireland is a stub.