First War

First War may refer to:


 * Prehistoric warfare
 * World War I (1914–1918)

Other wars

 * First Anglo-Afghan War
 * First Anglo-Burmese War
 * First Anglo-Dutch War
 * First Anglo-Maratha War
 * First Anglo-Mysore War
 * First Anglo-Sikh war
 * First Balkan War
 * First Barbary War
 * First Barons' War
 * First Boer War
 * First Carlist War
 * First Celtiberian War
 * First Chechen War
 * First Congo War
 * Trajan's First Dacian War
 * First Franco-Dahomean War
 * First Egyptian-Ottoman War
 * First Goryeo–Khitan War
 * First Indochina War
 * First Italian War of Independence
 * First Italo-Ethiopian War
 * First Jewish–Roman War
 * First Macedonian War
 * First Margrave War
 * First Maroon War
 * First Matabele War
 * First Messenian War
 * First Mithridatic War
 * First Northern War
 * First Opium War
 * First Peloponnesian War
 * First Perso-Turkic war
 * First Punic War
 * First Sacred War
 * First Schleswig War
 * First Servile War
 * First Sino-Japanese War
 * First Taranaki War
 * First War against Napoleon
 * First War of Kappel
 * First War of Scottish Independence
 * First Zhili–Fengtian War

Music

 * First War of the World, a 2009 album by Black Messiah