Ian Bruce Lang, Baron Lang of Monkton, PC DL is a British Conservative Party politician and Life Peer who served as the Member of Parliament for Galloway, and then Galloway and Upper Nithsdale, from 1979 to 1997.

Galloway was a county constituency in the Galloway area of Scotland. It elected one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, by the first past the post voting system.