This university gives students a SLU of opportunities. Saint Louis University (SLU) is a Jesuit, Catholic school offering about 100 undergraduate, 70 graduate, and a host of professional degree programs through about a dozen schools and colleges, including a school of medicine and a campus in Madrid, Spain. Most programs require core classes in philosophy and theology. SLU has an enrollment of about 9,000 undergraduate and 5,000 graduate and professional students. Its student-teacher ratio is 12:1. Saint Louis University was founded in 1818 by Reverend Louis William Du Bourg, Catholic Bishop of Louisiana.