2011 Belfast West by-election
9 June 2011
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A by-election for the United Kingdom parliamentary constituency of Belfast West was held on 9 June 2011, prompted by the resignation of the incumbent Sinn Féin Member of Parliament (MP) Gerry Adams to contest the Louth constituency in the 2011 Irish general election. It was won by Paul Maskey, who held the seat for Sinn Féin.