St John's University may refer to:

• St. John's University (New York City)
  • St. John's University School of Law
  • St. John's University (Italy), overseas campus in Rome, Italy
• College of Saint Benedict and Saint John's University, St. Joseph, Minnesota and Collegeville, Minnesota
  • St. John's University, Minnesota (CDP), a census-designated place in Minnesota
• St. John's University (1887–1952), in Shanghai, China
• St. John's University (California), a private Christian distance learning university in Temecula, California^[1][2]
• St. John's University (Taiwan), successor institution of the St. John's University in Shanghai
• St. John's University (Springfield, Louisiana), an unaccredited institution
• St. John's University of Tanzania, in Dodoma, Tanzania, East Africa
• St. John's University School of Medicine, unaccredited medical school supposedly based in Montserrat
• Saint John's Group of Schools and University, in Bangkok, Thailand

• Sju (disambiguation)
• Saint John's College (disambiguation)