Qatar explicitly uses Wahhabi law as the basis of its government, and the vast majority of its citizens follow this specific Islamic doctrine. Muhammad ibn Abd al-Wahhab founded Wahhabism, a puritanical version of Islam which takes a literal interpretation of the Qur’an and the Sunnah. In the eighteenth century, Abd Al-Wahhab formed a compact with the al-Saud family, the founders of Saudi Arabia.

In the early twentieth century, when the Al-Thanis realized that converting to the doctrine of their larger neighbor might bode well for the survival of their regime, they imported Wahhabi Islam from Saudi Arabia to Qatar. Perhaps as an effect of the importation, Wahhabism takes a more tolerant form in Qatar than in Saudi Arabia, though it still governs a large portion of Qatari mores and rituals. For example, almost all Qatari women wear the black abaya (also donned in Saudi Arabia); the government, however, does not impose the style universally. The abaya is mainly passed down from generation to generation and is still present because of the traditional values of the country.

Shi’as comprise just over 10% of the Muslim population.