The Wigtown Martyrs or Solway Martyrs, Margaret Lachlan around 60 and Margaret Wilson 18 were Scottish Covenanters who were executed by Scottish Episcopalians in 1685 in Wigtown, Scotland, by tying them to stakes on the town's mudflats and allowing them to drown with the rising tide.
Monuments to the 'Wigtown Martyrs' exist in Wigtown. During "The Killing Times" of the Covenanters in the 17th century, Margaret McLachlan, an elderly woman of around 63, and Margaret Wilson, around 18 years of age, were sentenced to be tied to stakes in the tidal channel of the River Bladnoch near its entrance to Wigtown Bay to be drowned by the incoming tide. The ploy was that the younger woman might be persuaded to change her mind after watching the older woman drown. The strategy failed and both died. This execution was carried out by dragoons under the command of Major Windram in the presence of Sir Robert Grierson of Lag who held the King's Commission to suppress the rebels in the South West. Their story, as told in various sources, tells how the women were betrayed by an informer. After about a month in prison they were tried as rebels and sentenced to death by drowning. The story of the Wigtown Martyrs was among those collected by Robert Wodrow and published in his History of the Sufferings of the Church of Scotland from the Restoration to the Revolution. The Church of Scotland synod had decided in 1708 to collect accounts of persecution under the Stuart monarchs, and persuaded Wodrow to take on the research. He wrote that Thomas Wilson "lives now in his father's room, and is ready to attest all I am writing."
- Thomson, John Henderson (1871). A cloud of witnesses, for the royal prerogatives of Jesus Christ : being the last speeches and testimonies of those who have suffered for the truth in Scotland, since the year 1680. Edinburgh: Oliphant, Anderson, & Ferrier. pp. 435–442. Retrieved 20 August 2018.
- Charles Rogers (1871). Monuments and monumental inscriptions in Scotland. pp. 351–.
- MacPherson, Hector (1947). The Wigtown Martyrs in Records of the Scottish Church History Society (Vol 18 ed.). Scottish Church History Society. pp. 166–184. Retrieved 20 August 2018.
- Smellie, Alexander (1908). Men of the Covenant (2nd ed.). London: Andrew Melrose. pp. 179–193. Retrieved 20 August 2018.
- Galloway and the Covenanters. p. 409 Wodrow's narrative.