Peter Joseph Verhaegen, S.J. (born Pierre Joseph Verhæegen; June 21, 1800 – July 21, 1868) was a Belgian Catholic priest, Jesuit, and missionary to the Midwestern United States who became the first president of Saint Louis University and St. Joseph's College in Bardstown, Kentucky. In 1845, Verhaegen became the provincial superior of the Jesuits' Maryland Province, where he remained until 1848 when he became the first president of St. Joseph's College in Kentucky. In his later years, he taught theology and preached at Saint Louis University.