John Halkerston was a Scottish architect, prominent in the 15th century.Rachel M. Delman, 'Mary of Guelders and the Architecture of Queenship in Fifteenth-Century Scotland', Scottish Historical Review, 102:2 (2023), pp. 211–231. He was Master of Works at Trinity College Kirk, Edinburgh, in the 1460s.Perth: The Archaeology and Development of a Scottish Burgh – David P. Bowler, Tayside and Fife Archaeological Committee, Perth, 2004, p. 21 Around the same time, he worked on St John's Kirk, in Perth, the northwest porch of which is now named "Halkerston Tower" in his honour.Ordnance Gazetteer of Scotland: A Graphic and Accurate Description of Every Place in Scotland, Francis Hindes Groome (1901) The door of the tower is known as the "Bride's Entrance" due to its use during weddings today."A walk around the exterior of the Kirk" – St John's Kirk official website"A walk around the Stunning Interior of the Kirk" – St John's Kirk official website

Halkerston's Wynd, a former wynd or alleyway in Edinburgh, is named for him.The History of the Collegiate Church and Hospital of the Holy Trinity and the Trinity Hospital, Edinburgh, 1460–1661 (1911), p. 20

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