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Top 5 deadliest wars in history by death toll

evergreen

The 5 deadliest wars in history by death toll by total deaths (mid-range estimates): World War II, Mongol conquests, Taiping Rebellion, and more.

Snapshot · 2026-09-23

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  1. 1

    World War II

    ~70–85 million

  2. 2

    Mongol conquests

    ~30–40 million

  3. 3

    Taiping Rebellion

    ~20–30 million

  4. 4

    World War I

    ~15–22 million

  5. 5

    An Lushan Rebellion

    ~13–36 million