Paul Peter Murphy, Baron Murphy of Torfaen, is a British Labour Party politician who was the Member of Parliament (MP) for Torfaen from 1987 to 2015, and served in the Cabinet from 1999 to 2005 and again from 2008 to 2009 in the roles of Northern Irish and Welsh Secretary. He was nominated for a life peerage in the 2015 Dissolution Honours.

The secretary of state for Northern Ireland, also referred to as the Northern Ireland secretary or SoSNI, is a secretary of state in the Government of the United Kingdom, with overall responsibility for the Northern Ireland Office. The incumbent is a member of the Cabinet of the United Kingdom.