O'Shaughnessy Stadium is a multi-purpose stadium in St. Paul, Minnesota. It is the home of the St. Thomas Tommies football and track and field teams, in addition to various intramural sports. Construction began on the stadium in 1940, with the completion of the south wall. However, the stadium was not finished until after 1947, following the end of WWII. Opened in 1948, the stadium was designed by architecture firm Ellerbe & Co. and built by Edward Dunningan Co. O'Shaughnessy Stadium is named for Ignatius O'Shaughnessy, an alumnus of St. Thomas and a donor to the school.