Peter Gerald Hain (born 16 February 1950) is a British Labour Party politician, who was the Member of Parliament (MP) for Neath between 1991 and 2015, and served in the Cabinets of both Tony Blair and Gordon Brown. He was the Leader of the House of Commons from 2003 to 2005 and Secretary of State for Northern Ireland from 2005 to 2007 under Blair, and as Secretary of State for Work and Pensions and Secretary of State for Wales from 2007 to 2008 under Brown.