Dumbarton is a town in Scotland, lying on the north bank of the River Clyde. It is dominated by Dumbarton Castle, which was founded by the Romans and has been rebuilt countless times since. It was the capital of the ancient kingdom of Strathclyde. It is currently the administrative centre of the West Dunbartonshire local authority.

In more recent times, the town became a centre for shipbuilding, and is the birthplace of David Byrne from the Talking Heads, and the motor-racing driver Jackie Stewart.

The town has a population of roughly 20,000.