Final War or Final Wars may refer to:
Fiction Final War, a term used in Honorverse, a military science-fiction book series by David Weber The Final War, a 1959 Japanese science fiction film made by Toei (released in U.S. in 1962) Final War, a 1968 novelette by Barry N. Malzberg "Final Wars", a song by Buckethead from his 2006 studio album The Elephant Man's Alarm Clock Godzilla: Final Wars, a 2004 Japanese science-fiction kaiju film directed by Ryuhei Kitamura
History War of Actium, the final war of the Roman Republic Byzantine–Sasanian War of 602–628, the last war between the Byzantine Empire and Persia World War I, The War to End All Wars, or the Great War