Source: In 30 countries, heads of state must belong to a certain religion | Pew Research Center
1. Christian
- Andorra
- Lebanon
2. Muslim
- Afghanistan
- Algeria
- Brunei
- Iran
- Jordan
- Malaysia
- Maldives
- Mauritania
- Morocco
- Oman
- Pakistan
- Qatar
- Saudi Arabia
- Somalia
- Syria
- Tunisia
- Yemen
3. Buddhist
- Bhutan
- Thailand
4. Pancasila
- Indonesia