Second War

Second War may refer to:


 * World War II (1939–1945)

Other wars

 * Second Sacred War (449–448 BC)
 * Second Samnite War (326–304 BC)
 * Second Punic War (218–202 BC)
 * Second Macedonian War (200–196 BC)
 * Second Servile War (104–103 BC)
 * Second Mithridatic War (83–82 BC)
 * Second Crusade (1145–1148)
 * Second Barons' War (1264–1267)
 * Second War of Scottish Independence (1328–1357)
 * Second Italian War (1499–1504)
 * Second War of Kappel (1531)
 * Second Bishops' War (1640)
 * Second English Civil War (1648–1649)
 * Second Anglo-Dutch War (1665–1667)
 * Second Silesian War (1744–1745)
 * Second Anglo-Mysore War (1780–1784)
 * Second Anglo-Maratha War (1803–1805)
 * Second War against Napoleon (1813–1814)
 * Second Barbary War (1815)
 * Second Seminole War (1835–1842)
 * Second Carlist War (1846–1849)
 * Second Anglo-Sikh war (1848–1849)
 * Second Anglo-Burmese War (1853)
 * Second Opium War (1856–1860)
 * Second Italian War of Independence (1859)
 * Second Schleswig War (1864)
 * Second Taranaki War (1864–1866)
 * Second Matabele War (1896–1897)
 * Second Boer War (1899–1902)
 * Second Balkan War (1913)
 * Second Zhili–Fengtian War (1924)
 * Second Italo-Ethiopian War (1935–1936)
 * Second Sino-Japanese War (1937–1945)
 * Second Cod War (1972–1973)
 * Second Gulf War, one of three wars in the last two decades of the twentieth century and in the first decade of the twenty-first century
 * Second Sudanese Civil War (1983–2005)
 * Second Congo War (1998–2004)
 * Second Chechen War (1999–2009)
 * Second Liberian Civil War (1999–2003)
 * Second Lebanon War (2006), the Israeli name for the 2006 Lebanon War

Fictional

 * Second Bloody Valentine War
 * Second Robotech War
 * Warcraft II: Tides of Darkness, a computer game