St. Urban
- The longer of two biographies of the pope at catholic.org.
- http://www.catholic.org/saints/saint.php?saint_id=718

Urban I, Pope
- Brief hagiography.
- http://www.saintpatrickdc.org/ss/0525.htm#urba

Urban I
- Very short profile, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/urbani.html

Pope Urban I
- Died 230. We know very little about his life, and even his burial place was in doubt for some time.
- http://www.newadvent.org/cathen/15209a.htm

St. Urban I
- Brief biography, from Joseph Brusher.
- http://www.cfpeople.org/Books/Pope/POPEp17.htm