The United Kingdom Alternative Vote referendum, was held on Thursday 5 May 2011 (the same date as local elections in many areas) in the United Kingdom (UK) to choose the method of electing MPs at subsequent general elections. It occurred as a provision of the Conservative–Liberal Democrat coalition agreement drawn up in 2010 (after a general election that had resulted in the first hung parliament since February 1974)
The referendum concerned whether or not to replace the present "first-past-the-post" system with the "alternative vote" (AV) method, and was the first national referendum to be held across the whole of the United Kingdom in the twenty-first century. The proposal to introduce AV was rejected by 67.9% of voters on a national turnout of 42%.
On a turnout of 42.2 percent, 68 percent voted 'No' and 32 percent voted 'Yes'.