Michael Dubruiel (1958–2009) was a Roman Catholic author and speaker. Born in Keene, New Hampshire, Dubruiel served for four years in the US Army before receiving a bachelor’s degree in philosophy from St. Meinrad College, a master’s of divinity from St. Vincent de Paul Seminary, and a master’s degree in Christian spirituality from Creighton University. During the 1980s and 1990s, he served in Catholic parishes in Jacksonville, Orange Park, and Gainesville, and taught homiletics and spirituality at St. Vincent de Paul Seminary. He taught theology at Tampa Jesuit High School from 1994 to 1998.
From 1999 to 2008, Dubruiel worked as acquisitions editor at Our Sunday Visitor Publishing in Huntington, Indiana. In the summer of 2008 he began work as director of the Office of the New Evangelization and Stewardship for the Diocese of Birmingham. Like his wife, Amy Welborn, Dubruiel became a widely read Catholic blogger. He was the author of eleven popular Catholic books, including two that he coauthored with his wife.