Curtis John Guillory, S.V.D. (born September 1, 1943) is a retired American prelate of the Catholic Church and member of the Society of the Divine Word. Guillory served as Bishop of Beaumont from 2000 to 2020. He was the first non-canonist to hold this position. Guillory previously served as an auxiliary bishop of the Diocese of Galveston–Houston in Texas from 1988 to 2000, the first (and, as of 2022, the only) Black Catholic bishop in Texas history.