David Clifford Davies (born 26 November 1959), commonly known as Dai Davies, is a Welsh politician. He was the Member of Parliament (MP) for the Blaenau Gwent constituency in South Wales from 2006 to 2010, representing the Blaenau Gwent People's Voice Group. He was elected at a by-election in June 2006 following the death of independent MP Peter Law, but lost his seat the at the 2010 general election to Labour's Nick Smith by 10,516 votes.