Ronald Davies is a retired Welsh politician, former Secretary of State for Wales, former Member of Parliament and former member of the Welsh Assembly. He describes himself as a politician belonging to the "traditional left" who had "spent his life looking for a socialist progressive party". He was a member of the Labour Party, and then of Forward Wales (2004–2009); he was subsequently an independent candidate and eventually joined Plaid Cymru in 2010.

The secretary of state for Wales, also referred to as the Welsh secretary, is a secretary of state in the Government of the United Kingdom, with responsibility for the Wales Office. The incumbent is a member of the Cabinet of the United Kingdom.