Donald Macpherson Baillie (5 November 1887 – 31 October 1954) was a Scottish theologian, ecumenist, and parish minister.
Baillie was born in the Free Church of Scotland manse in Gairloch, Ross-shire, on 5 November 1887, the son of Rev.
He also spent two semesters at the German universities in Marburg under Wilhelm Herrmann and Adolf Julicher and in Heidelberg under Ernst Troeltsch and Johannes Weiss.
[2] Baillie began his own pastoral work as an assistant in North Morningside Church, Edinburgh and in 1917 volunteered to serve with the Young Men's Christian Association (YMCA) in France.
In 1935 he became Professor of Systematic Theology at the University of St Andrews, where he had been Additional examiner for the BD degree in Divinity and Ecclesiastical History from 1921-1924, and which had awarded him an Honorary DD in 1933.
Baillie died, while still in post of being the Professor of Systematic Theology, of emphysema in Maryfield Hospital, Dundee, on October 31, 1954, at the age of 67 years.