Tytania (Japanese: タイタニア, Hepburn: Taitania) is a Japanese space opera novel series written by Yoshiki Tanaka between 1988 and 2015 and released in five volumes. The series is about people who try to liberate the galaxy from the rule of the Tytania-clan and seek refuge with a rebel force. It has been adapted into manga and anime in 2008–2011.