Albert Benjamin Simpson, Canadian preacher, theologian, and author, founded the Christian and Missionary Alliance (b. 1843)

Albert Benjamin Simpson (December 15, 1843 – October 29, 1919), also known as A. B. Simpson, was a Canadian preacher, theologian, author, and founder of the Christian and Missionary Alliance (C&MA), an evangelical denomination with an emphasis on global evangelism that has been characterized as being Keswickian in theology.