William Boyd Stewart (July 27, 1835 in Haddam, Dumfrieshire, Scotland – March 5, 1912 in Toronto) was a pastor, writer, and educator in the Baptist denomination of Canada.
William Boyd Stewart was born the son of Alexander and Jane Stewart. After finishing university he emigrated to Canada in 1856. Stewart married Augusta A. Kilborn (February 15, 1835 Beamsville - February 18, 1911 Toronto, Ontario) at Beamsville, Ontario on 28 February 1860. Together they had four daughters:
Stewart studied at the Annan Academy and later at the University of Glasgow in his native Scotland. Later in 1860 he was entered into an ad eundem degree at the University of Rochester. At some later date Stewart was awarded the honorary Doctor of Divinity degree.
Prior to October 1859 Stewart served in the pastorate of Beamsville Baptist Church in Beamsville, Ontario and was ordained in 1859. After this he served at Cheltenham Baptist Church in Cheltenham, Ontario (beginning before he was married) from October 1859 until June 1860 when he left to take up a teaching position at the Canadian Literary Institute in Woodstock.
Stewart re-entered the ministry at First Baptist Church Brantford, Ontario beginning August 1863 to May, 1869. During his pastorate Americus Vespucius Timpany (the first missionary of the Baptists in Canada) was ordained for the missionary work in Kakinada, India in October, 1867. During 1869 Stewart was called to be assistant pastor of Bond Street Baptist Church in Toronto, Ontario but immediately assumed the full pastorate upon the death of Thomas Ford Caldicott. He served in the capacity of Pastor until May 1872 citing ill health.
Sometime after leaving Bond Street Stewart served as pastor of Park Street Baptist Church, Hamilton, Ontario during the latter 1870s (later it re-integrated with James Street Baptist Church).
Stewart served as Interim Pastor at Parliament Street Baptist Church from the fall of 1893-early 1894. He also served in various interim or fill-in capacities throughout the Toronto area Baptist churches including Zion Baptist, Eglinton throughout the time period from 1894-1900.
William Stewart taught high school shortly after his arrival in Canada. From 1860-1863 he became the Professor of Classics at the Canadian Literary Institute (later Woodstock College). In 1869 he was appointed the superintendent of the schools for Brantford.