William S. Bowdern, American priest and author (b. 1897)

William S. Bowdern (February 13, 1897 - April 25, 1983) was a Catholic priest of the Society of Jesus in St. Louis, Missouri. He was the author of The Problems of Courtship and Marriage printed by Our Sunday Visitor in 1939. He was a graduate of and taught at St. Louis University High School; he also taught at St. Louis University.

Bowdern participated in an exorcism of Roland Doe in 1949. The incident became the basis of William Peter Blatty's 1971 novel The Exorcist.