Before the Acts of Union 1707, the barons of the shire of Dumbarton elected commissioners to represent them in the unicameral Parliament of Scotland and in the Convention of the Estates.
From 1708 Dunbartonshire was represented by one Member of Parliament in the House of Commons of Great Britain.
List of shire commissioners 1593: Sir James Seton of Touch 1593: Sir James Edmonstone of Duntreath 1608: Sir Aulay MacAulay of Ardincaple 1612: Alexander Colquhoun of Luss 1617: William Semple of Fulwood 1621: John Colquhoun of LussG. E. C., The Complete Baronetage, vol. II (1902) pp. 293–294. 1621: Henry Stirling of Ardoch 1628–33, 1645, 1649 and 1651: Sir Ludovic Houston of that IlkComplete Baronetage, vol. IV (1904) p. 268.Joseph Foster, Members of Parliament, Scotland (1882) p. 189. 1630: name not known 1633: James Muirhead of Lachop, yr 1639–41, 1648: Duncan Campbell of CarrickG. Harvey Johnston, The Heraldry of the Campbells, vol. II (1921) p. 23. 1640–41; 1643–49: Sir Humphrey Colquhoun of BalvieComplete Baronetage, vol. II, p. 294. 1643, 1645–47, 1648–49: William Semple of Fulwood 1650, 1661–63, 1665 convention, 1667 convention and 1669–74: Sir John Colquhoun of Luss 1661–63, 1665 convention, 1667 convention, 1669–74: John Napier of Kilmahew 1678 convention: William Hamilton of Orbiston 1678 convention and 1681–82: Sir Patrick Houston of that Ilk 1681–82: William Noble of Dalnotter 1685–86: Nicoll Buntine of Ardoch 1685–86: Alexander Gartshore of that Ilk 1689 (convention), 1689–1702: Claude Hamilton of Barnes 1689 (convention), 1689–98: William Colquhoun of Craigtoun 1700–01: John Haldane of Gleneagles 1702–07: William Cochrane of Kilmaranock 1702–07: Sir Humphrey Colquhoun of Luss
References Margaret M. Young, The Parliaments of Scotland: Burgh and Shire Commissioners (Edinburgh, 1993) vol. 2, p. 792.
See also List of constituencies in the Parliament of Scotland at the time of the Union