Two by-elections were held for the constituency of Blaenau Gwent in Wales following the death of Member of Parliament and Assembly Member Peter Law on 25 April 2006. As Law was the MP and Assembly Member (AM), his death required by-elections in both the parliamentary seat and the equivalent Welsh Assembly constituency. The two elections polled on the same day, 29 June, as a by-election in Bromley and Chislehurst. A win by the Labour Party in the AM by-election would have restored their majority in the Welsh Assembly, which was lost when Law was expelled from the party.