West Dorset is a constituency[n 1] represented in the House of Commons of the UK Parliament since 2024 by Edward Morello, a Liberal Democrat.

The previous closest result in recent years was in 2001, when the then member, Oliver Letwin, held his seat with a majority of only 2.8% over the Liberal Democrat candidate, Simon Green.

[2] Minor changes to bring the electorate within the permitted range following re-organisation of local authorities and wards in Dorset.

Aside from tourist areas, including the Jurassic Coast which is a UNESCO World Heritage Site, the seat draws on managerial and advanced professional skills in sectors such as mechanical engineering, manufacturing, reconditioning, defence, art and design, which support local trades and retail.

[3] Workless claimants who were registered jobseekers were in November 2012 significantly lower than the national average of 3.8%, at 1.4% of the population based on a statistical compilation by The Guardian.