Brothers War may refer to:
The Brothers' War (241-227 BC) between Antiochus Hierax and Seleucus II Callinicus in the Seleucid Empire The War of the Two Brothers (1828–1834) in Portugal The Austro-Prussian War of 1866 The War of Brothers of 1988–1990 in Lebanon The Battle of Gaza (2007) between Hamas and Fatah The World War One/The Great War (1914–1918) The Brothers' War, a 2022 Magic: The Gathering expansion set See also
Fratricide