Title or function

• Defensor civitatis, a function in the Roman and Byzantine Empire, with later imitations
• defensor matrimonii, in canon law.
• Fidei defensor
  Fidei defensor
  Fidei defensor is a Latin title which translates to Defender of the Faith in English and Défenseur de la Foi in French...
  
  , a princely title, such as Defensor Perpétuo do Império do Brasil

Personal name

• Defensor, the compiler of the early medieval florilegium Liber Scintillarum
  Liber Scintillarum
  Liber Scintillarum is a late seventh or early eighth-century florilegium of biblical and patristic sayings in Latin. It was compiled by Defensor, a monk who in the preface identifies himself as a member of St Martin's Abbey at Ligugé, near Poitiers, and who wrote the work at the behest of his...
  
  
• A surname, as in Miriam Defensor-Santiago
  Miriam Defensor-Santiago
  Miriam Defensor Santiago is a Senator of the Philippines. She is a lawyer, former trial judge and professor of constitutional and international law. She served as the Commissioner of the Bureau of Immigration and Deportation in 1988 and the Secretary of the Department of Agrarian Reform from 1989...
  
  
• Any of several characters from the Transformers. Defensor (Transformers)
• Defensor
  Defensor (comics)
  Defensor is a fictional character in the Marvel Universe.-Publication history:Defensor first appeared in Marvel Super-Heroes: Contest of Champions #1 . He also appeared in issues #2-3 of the series ....
  
  , a Marvel Comics
  Marvel Comics
  Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...
  
   superhero that debuted in the original Contest of Champions
  Contest of Champions
  Contest of Champions is a three-issue comic book limited series published from June to August 1982 by Marvel Comics. The series was written by Mark Gruenwald with art by John Romita, Jr. and Bob Layton.-Publication history:...
  
  

Other

• The title of various publications, such as the tract Defensor pacis
  Defensor pacis
  The tract Defensor pacis laid the foundations of modern doctrines of sovereignty. It was written by Marsilius of Padua , an Italian medieval scholar. It appeared in 1324 and provoked a storm of controversy that lasted through the century...
  
  
• Defensores (plural), the name of various sports teams, especially in Latin America
• Defensor Sporting Club
  Defensor Sporting Club
  -History:Founded on March 15, 1913 as Club Atlético Defensor, the name of the club was changed in 1989 to Defensor Sporting Club after a merger with Sporting Club Uruguay. The team plays in the Luis Franzini Stadium...
  
  , football club in Uruguay
• Defensor (Transformers), fictional Autobot character.