History’s Deadliest Leaders: Deaths from Wars, Genocides and Famines ☠️ 🇨🇳 Mao Zedong (1943–1976) – 80 Million 🇷🇺 Joseph Stalin (1924–1953) – 60 Million 🇲🇳 Genghis Khan (1206–1227) – 35 Million 🇨🇳 Hong Xiuquan (1850–1864) – 30 Million 🇩🇪 Adolf Hitler (1933–1945) – 25 Million 🇺🇿 Tamerlane (Timur) (1370–1405) – 17 Million 🇯🇵 Hideki Tojo (1941–1944) – 14 Million 🇧🇪 Leopold II (1885–1908) – 10 Million 🇹🇼 Chiang Kai-shek (1928–1949) – 9 Million 🇷🇺 Vladimir Lenin (1917–1924) – 5 Million 🇰🇵 Kim Il-sung (1948–1994) – 3 Million 🇰🇭 Pol Pot (1963–1981) – 2.9 Million 🇳🇬 Yakubu Gowon (1966–1975) – 2.8 Million 🇵🇰 Yahya Khan (1969–1971) – 2.7 Million 🇹🇷 Enver Pasha (1913–1918) – 2.5 Million 🇮🇶 Saddam Hussein (1979–2003) – 2 Million 🇪🇹 Mengistu Haile Mariam (1977–1991) – 1.5 Million 🇦🇴 Jonas Savimbi (1975–2002) – 1 Million 🇸🇾 Bashar al-Assad (2000–2024) – 600 K 🇺🇬 Idi Amin (1971–1979) – 500 K Sources: R.J. Rummel (Death by Government), Matthew White (Necrometrics), Stéphane Courtois (The Black Book of Communism), Timothy Snyder (Bloodlands), Frank Dikötter (Mao’s Great Famine), Robert Conquest (The Great Terror), Adam Hochschild (King Leopold’s Ghost), Yang Jisheng (Tombstone), Jung Chang & Jon Halliday (Mao: The Unknown Story), United Nations reports.