South Dorset is a constituency represented in the House of Commons of the UK Parliament since 2010 by Richard Drax, a Conservative. The constituency was created as a consequence of the Redistribution of Seats Act 1885, although the area covered has changed since then.

Richard Grosvenor Plunkett-Ernle-Erle-Drax is a British Conservative Party politician, landowner and former journalist serving as the Member of Parliament (MP) for South Dorset since 2010.