Dumbarton (UK Parliament constituency)

Dumbarton was a burgh constituency represented in the House of Commons of the Parliament of the United Kingdom from 1983 until 2005. It was largely absorbed into the new constituency of West Dunbartonshire, with Helensburgh joining Argyll and Bute.

The Dumbarton constituency of the Scottish Parliament, which was created in 1999 with the same boundaries, continues to exist.

Boundaries
It consisted of the towns of Dumbarton, the Vale of Leven, and Helensburgh, plus a significant rural hinterland.