It's a repeat role for Davies, who was chairman from 2000 until 2003, when he left the company to chair the Arts Council of Wales. The Stage writes that Welsh culture minister Alun Pugh informed Davies that he would not have his ACW contract renewed earlier this year.
Davies is a graduate of Jesus College, Oxford, and began his career as a journalist. He has worked as assistant editor of the Western Mail of Cardiff, head of news and current affairs at HTV Wales and controller at BBC Wales, a position that included responsibility for BBC National Orchestra and Chorus of Wales.
In a statement, Davies said, "It is a real privilege to have an opportunity to return to WNO. The quality of the company's work, the affection in which it is held within Wales and its reputation everywhere, make it unique."