St. Leo
- Chapel of St Leo, Żurrieq
- List of saints named Leo
- Malta
- Saint Leo Abbey
- Saint Leo University
- Saint Leo the Great Parish
- Saint Leo's Elementary School (Brantford)
- Saint Leo, West Virginia
- St Leo's Catholic College
- St Leo's College, Carlow
- St Leo's College, University of Queensland
- St. Leo the Great School, San Jose
- St. Leo's (soccer team)
- St. Leo's Roman Catholic Church, Mimico
- St. Leo, Florida
- St. Leo, Kansas
- St. Leo, Minnesota