| Sudan |  | Sunni Islam | Sunni Muslim 70% (in north), Christian 5% (mostly in south and Khartoum), indigenous beliefs 25% |
| Algeria |  | Sunni Islam | Sunni Muslim (state religion) 99%, Christian and Jewish 1% |
| Libya |  | Sunni Islam | Sunni Muslim 97%, other 3% |
| Iran |  | Sunni Islam | Muslim 98% (Shia 89%, Sunni 9%), other (includes Zoroastrian, Jewish, Christian, and Baha'i) 2% |
| Egypt |  | Sunni Islam | Muslim (mostly Sunni) 90%, Coptic 9%, other Christian 1% |
| Pakistan |  | Sunni Islam | Muslim 95% (Sunni 75%, Shia 20%), other (includes Christian and Hindu) 5% |
| Turkey |  | Sunni Islam | Muslim 99.8% (mostly Sunni), other 0.2% (mostly Christians and Jews) |
| Afghanistan |  | Sunni Islam | Sunni Muslim 80%, Shia Muslim 19%, other 1% |
| Somalia |  | Sunni Islam | Sunni Muslim |
| Yemen |  | Sunni Islam | Muslim including Shaf'i (Sunni) and Zaydi (Shia), small numbers of Jewish, Christian, and Hindu |
| Iraq |  | Sunni Islam | Muslim 97% (Shia 60%-65%, Sunni 32%-37%), Christian or other 3% |
| Oman |  | Sunni Islam | Ibadhi Muslim 75%, other (includes Sunni Muslim, Shia Muslim, Hindu) 25% |
| Syria |  | Sunni Islam | Sunni Muslim 74%, other Muslim (includes Alawite, Druze) 16%, Christian (various denominations) 10%, Jewish (tiny communities in Damascus, Al Qamishli, and Aleppo) |
| Tajikistan |  | Sunni Islam | Sunni Muslim 85%, Shia Muslim 5%, other 10% (2003 est.) |
| Jordan |  | Sunni Islam | Sunni Muslim 92%, Christian 6% (majority Greek Orthodox, but some Greek and Roman Catholics, Syrian Orthodox, Coptic Orthodox, Armenian Orthodox, and Protestant denominations), other 2% (several small Shia Muslim and Druze populations) (2001 est.) |
| Kuwait |  | Sunni Islam | Muslim 85% (Sunni 70%, Shia 30%), other (includes Christian, Hindu, Parsi) 15% |
| Lebanon |  | Sunni Islam | Muslim 59.7% (Shia, Sunni, Druze, Isma'ilite, Alawite or Nusayri), Christian 39% (Maronite Catholic, Greek Orthodox, Melkite Catholic, Armenian Orthodox, Syrian Catholic, Armenian Catholic, Syrian Orthodox, Roman Catholic, Chaldean, Assyrian, Copt, Protestant), other 1.3% |
| West Bank |  | Sunni Islam | Muslim 75% (predominantly Sunni), Jewish 17%, Christian and other 8% |
| Comoros |  | Sunni Islam | Sunni Muslim 98%, Roman Catholic 2% |
| Bahrain |  | Sunni Islam | Muslim (Shia and Sunni) 81.2%, Christian 9%, other 9.8% (2001 census) |
| Gaza Strip |  | Sunni Islam | Muslim (predominantly Sunni) 99.3%, Christian 0.7% |
| Maldives |  | Sunni Islam | Sunni Muslim |
| Cocos (Keeling) Islands |  | Sunni Islam | Sunni Muslim 80%, other 20% (2002 est.) |