Cardinal Glennon Children's Hospital
- Cardinal Glennon Children's Hospital is a medical facility of Saint Louis University in St. Louis, Missouri named after Cardinal John J. Glennon.
Glennon, James H. (Navy Rear Admiral)
- James H. Glennon was Rear Admiral in the United States Navy (1857-1940).
Glennon, John Alan (Geographer/Explorer)
- John Alan Glennon is an American geographer and explorer (1970-).
Glennon, John J. (Roman Catholic Cardinal)
- John J. Glennon was the Roman Catholic Archbishop of the Archdiocese of Saint Louis, from 1903 to his death in 1946.
USS Glennon (Naval Ships)
- USS Glennon: Two ships in the United States Navy have had the name USS Glennon---named in honor of Rear Admiral James H. Glennon.