WORST MASS MURDERERS OF ALL TIME:
1. Genghis Khan
~40–60 million deaths
Mongol conquests depopulated entire regions of China, Persia, Central Asia.
2. Mao Zedong
~45–70 million deaths
Great Leap Forward famine, Cultural Revolution, purges.
3. Joseph Stalin
~20–30 million deaths
Holodomor, Gulag system, Great Purge, forced deportations.
4. Adolf Hitler
~17–20 million deaths
Holocaust (6M Jews), war deaths caused by Nazi invasion, civilian massacres.
5. Tamerlane (Timur)
~15–20 million deaths
His Central Asian and Middle Eastern campaigns were extraordinarily destructive.
6. Leopold II of Belgium
~10–15 million deaths
Atrocities in the Congo Free State — forced labor, starvation, mutilation.
7. Hideki Tojo (Imperial Japan)
~5–10 million deaths
Oversaw Japanese military expansion: Nanjing Massacre, Unit 731, civilian massacres across Asia.
8. Hirohito (as head of state)
~5–10 million deaths
Although not the operational commander, his approval enabled Japan’s war of aggression.
9. Chiang Kai‑shek
~3–10 million deaths
Civil war campaigns, purges, and disastrous military decisions during the Sino‑Japanese War.
10. Pol Pot
~1.7–2.5 million deaths
The Khmer Rouge killed roughly a quarter of Cambodia’s population.