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Top 5 largest religious groups in the world

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The 5 largest religious groups in the world by share of world population (Pew, 2020): Christianity, Islam, Religiously unaffiliated, Hinduism, Buddhism.

Snapshot · 2026-09-01

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  1. 1

    Christianity

    28.8%

  2. 2

    Islam

    25.6%

  3. 3

    Religiously unaffiliated

    24.2%

  4. 4

    Hinduism

    14.9%

  5. 5

    Buddhism

    4.1%