| World Religions | Number followers (millions) | Cultural tradition | Where Founded | Date |
| Christianity | 2,200 | Abrahamic religions | Levant region | 31 |
| Catholic | 1,200 | Europe | 110 | |
| Protestant | 800 | Europe | 1530 | |
| Orthodox | 350 | Greece | 1054 | |
| Other | 50 | |||
| Islam | 1,800 | Abrahamic religions | Arabian Peninsula | 622 |
| Sunni | 1,600 | 661 | ||
| Shia | 180 | 680 | ||
| Sufism | 20 | 659 | ||
| Hinduism | 1,100 | Indian religions | Indian subcontinent. before writing | -1,750 |
| Vaishnavism | 400 | |||
| Shaivism | 400 | |||
| Shaktism | 400 | |||
| Smartism | 400 | |||
| Medium-sized religions | ||||
| Buddhism | 488 | Indian religions | Indian subcontinent. | -500 |
| Theravada | S.E. Asia. | -250 | ||
| Mahayana | China. | -50 | ||
| Vajrayana | Taibet | 350 | ||
| Shinto | 100 | Japanese religions | Japan | -660 |
| Lessor religions | ||||
| Sikhism | 28 | Indian religions | Indian subcontinent | 1500 |
| Judaism | 14 | Abrahamic religions | Levant region. | -1,000 |
| Reformed | .8 | US, UK | ||
| Orthodox | 1.4 | |||
| Korean shamanism | 5-15 | Korean religions | Korea. Before 500 BC | -500 |
| Caodaism | 5-9 | Vietnamese religions | Vietnam | 1926 |
| Bahá'í Faith | 5-7.3 | Abrahamic religions | Iran | 1844 |
| Jainism | 4.2 | Indian religions | Indian subcontinent | -850 |
| Cheondoism | 3-4 | Korean religions | Korea | 1870 |
| Hoahaoism | 1.5-3 | Vietnamese religions | Vietnam | 1939 |
| Tenriism | 5 | Japanese religions | Japan | 1838 |
| Wicca | 0.8 | Neopagan | England | 1921 |
| Zoroastrism | 0.15 | Indo-Iranian | Iran | -625 |
| Druidry | 0.05 | Pagan tradition | Celtics | -750 |
| Odinism | Pagan tradition | Scandinavia | -2,000 | |
| Osiris | Egyptian religions | Egypt | -2,100 | |
| Secular | 2,500 | 36% | -28,000 | |
| Shamanism | Wise men | World | -30,000 | |