George Baillie Duncan (1912 – April 4, 1997) was a Scottish preacher and minister whose evangelical ministry spanned over four decades, influencing congregations and conventions across the United Kingdom with a focus on spiritual renewal. Born in India to Scottish missionary parents, he was raised in Scotland after their return, growing up in a devout Christian home. Educated at Merchiston Castle School in Edinburgh and the University of Edinburgh, he trained for ministry at Tyndale Hall in Bristol, embracing a robust evangelical faith that shaped his career. Duncan’s preaching career began as a curate at Broadwater Parish Church in Worthing, England, followed by pastorates at St. James’s in Carlisle, St. Thomas’s English Episcopal Church in Edinburgh, and Christ Church in Cockfosters (1951–1958). Returning to Scotland, he ministered at Portland Church in Troon (1958–1965) and St. George’s Tron Church in Glasgow (1965–1977), succeeding Tom Allan. A prominent speaker at the Keswick Convention from 1947 onward, he also chaired the Movement for World Evangelisation, preaching regularly at the Filey Christian Holiday Crusade. His sermons, emphasizing continual rejoicing and the Holy Spirit’s work—preserved in works like The Life of Continual Rejoicing (1960)—drew thousands with their warmth and biblical depth. Married with family details private, he died at age 85 at his daughter’s home on the Isle of Wight, England.