South West Wiltshire Constituency

The constituency replaced the previous Westbury constituency for the 2010 general election, following the Fifth Periodic Review of Westminster constituencies tasked to the Boundary Commission. The towns of Trowbridge, Warminster and Westbury form the bulk of the electorate of the constituency which stretches to the South West county boundary with Dorset.

The seat has been held by Conservative MP, Andrew Murrison, Surgeon Commander (RN) and Chair of the Northern Ireland Affairs Select Committee, since its inception in 2010. In the 2017 general election, Andrew increased his share of the vote to 60.0%.