Wigtownshire was a constituency represented in the Parliament of Scotland until 1707.
Shire commissioners
1621: Robert Maclellan
1628–33, 1643, 1644, 1645–47: Sir Patrick Agnew, 1st Baronet
1644, 1648–49, 1665 convention, 1667 convention, 1669–72: Sir Andrew Agnew, 2nd Baronet of Lochnaw
1661–63: Uchtred McDowall of Freuch
1661–63: Richard Murray of Broughton
1665 convention, 1681–82: Sir David Dunbar of Baldoune
1667 convention, 1669–72: William Maxwell of Monreith
1672–74, 1678 convention, 1681–82: Sir James Dalrymple, 1st Baronet
1678 convention: Sir Godfrey Macculloch, 2nd Baronet
1685, 1689 convention, 1689–1702: Sir Andrew Agnew, 3rd Baronet (died 1702)
1685: William Steuart of Castlestuart
1689 (convention), 1689–1700: William McDowell of Garthland (died c.1700)
1700–02, 1702–07: William Steuart the elder of Castlesteuart
1702, 1702–07: John Stewart of Sorbie