XIII

XIII may refer to:

• 13 (number) or XIII in Roman numerals
• 13th century in Roman numerals
• XIII (comics), a Belgian comic book series by Jean Van Hamme and William Vance
• XIII (2003 video game), a 2003 video game based on the comic book series
• XIII (2020 video game), a remake of the 2003 video game
• , a TV miniseries based on the comic book series and game of the same title
• , a 2011 TV series based on the comic book series and miniseries
• XIII (Rage album), 1998
• XIII (Mushroomhead album), 2003
• XIII (TNT album), 2018
• Factor XIII, a clotting factor inside the coagulation cascade
• Rugby league, still often known as just XIII in France due to the name Rugby once being forbidden for the league code

• Thirteen (disambiguation)
• Number 13 (disambiguation)
• Red XIII, a character from Final Fantasy VII
• Organization XIII, a fictional organization from the Kingdom Hearts series
• Final Fantasy XIII, a 2009 video game
• , a 2007 film
• The King of Fighters XIII, a 2010 fighting video game