Sinclair Ferguson (born 1948) is a Scottish theologian known in Reformed Christian circles for his teaching, writing, and editorial work. He received his Ph.D. from the University of Aberdeen and was a minister in the Church of Scotland from 1971 to 2005, when he transferred to the Associate Reformed Presbyterian Church. He has served as an editor with the Banner of Truth Trust and worked as a minister at St George's-Tron Church, Glasgow. Ferguson is a friend of R. C. Sproul and has been a speaker at a number of Sproul's Ligonier Conferences.