List Of Wars By Death Toll

• 60,000,000–72,000,000 - World War II (1939–1945)
• 36,000,000 - An Shi Rebellion (China, 755–763)
• 30,000,000–60,000,000 - Mongol Conquests (13th century) 
• 25,000,000 - Qing dynasty conquest of Ming dynasty (1616–1662)
• 20,000,000 - World War I (1914–1918) (see World War I casualties)
• 20,000,000 - Taiping Rebellion (China, 1850–1864)
• 20,000,000 - Second Sino-Japanese War (1937–1945)
• 10,000,000 - Warring States Era (China, 475 BC–221 BC)
• 8,000,000–12,000,000 - Dungan revolt (China, 1862 –1877)
• 7,000,000–20,000,000 - Conquests of Tamerlane (1370–1405)
• 5,000,000–9,000,000 - Russian Civil War and Foreign Intervention (1917–1922)
• 5,000,000 - Conquests of Menelik II of Ethiopia (1882–1898)
• 3,800,000–5,400,000 - Second Congo War (1998–2003)
• 3,500,000–6,000,000 - Napoleonic Wars (1803–1815)
• 3,000,000–11,500,000 - Thirty Years' War (1618–1648)
• 3,000,000–7,000,000 - Yellow Turban Rebellion (China, 184–205)
• 2,500,000–3,500,000 - Korean War (1950–1953)
• 2,300,000–3,800,000 - Vietnam War (entire war 1945–1975)
• 300,000–1,300,000 - First Indochina War (1946–1954)
• 100,000–300,000 - War in Vietnam (1954–1959), War in Vietnam (1959–1963) (1954–1965)
• 1,750,000–2,100,000 - American phase (1965–1973)
• 170,000 - Final phase (1973–1975)
• 175,000–1,150,000 - Secret War (1953–1975)
• 2,000,000–4,000,000 - Huguenot Wars
• 1,500,000–2,000,000 - War against Armenians, Greeks and Arameans, by the Turks.
• 2,000,000 - Shaka's conquests (1816–1828)
• 300,000–3,000,000[24] - Bangladesh Liberation War (1971)
• 2,000,000 - Russian-Circassian War (1763–1864) and the exile of another 1.5 million Circassians from there homeland to the Ottoman Empire and another 500,000 Circassians Killed at sea during the Circassian exile from there homeland.
• 1,500,000–2,000,000 - Afghan Civil War (1979-)
• 1,000,000–1,500,000 - Soviet intervention (1979–1989)
• 1,300,000–6,100,000 - Chinese Civil War (1927–1949)
• 300,000–3,100,000 - before 1937
• 1,000,000–3,000,000 - after World War II
• 1,000,000–2,000,000 - Mexican Revolution (1910–1920)
• 1,000,000 - Iran–Iraq War (1980–1988)
• 1,000,000 - Japanese invasions of Korea (1592–1598)
• 1,000,000 - Second Sudanese Civil War (1983–2005)
• 1,000,000 - Panthay Rebellion (China,1856–1873)
• 1,000,000 - Nien Rebellion (China,1853–1868)
• 1,000,000 - Nigerian Civil War (1967–1970)
• 618,000–970,000 - American Civil War (including 350,000 from disease) (1861–1865)

Note: This list of wars is based on death toll estimates of all deaths that are either directly or indirectly caused by war. These numbers include both the deaths of military personnel which are the direct results of battle or other military wartime actions, as well as the wartime/ war-related deaths of civilians, which are the results of war induced epidemics, diseases, famines, atrocities etc.