XIII: The Series is an English-language Franco-Canadian TV series that premiered in April 2011 in France and Canada.The series is based on the Belgian graphic novel series of the same name created by Jean Van Hamme and William Vance. It's about an amnesiac protagonist who seeks to discover his concealed past. The TV series follows the events of the 2008 TV film XIII: The Conspiracy. The first season follows the plot in parallel with the existing volumes in the comic series, while the second season diverts into an all-new original story arc.

XIII ("Thirteen") is a Belgian graphic novel series about an amnesiac who seeks to discover his past. It was created by writer Jean Van Hamme and artist William Vance. It is currently being written by Yves Sente and Youri Jigounov. The storyline of the first five volumes was adapted into a video game in 2003, also titled XIII, which was released on several platforms. A Canadian television film based on the series, XIII: The Conspiracy, was released in 2008. It was followed in 2011 by two seasons of a TV series, each 13 episodes, called XIII: The Series.