Title: Muscat
Content:  back in by the Portuguese in 1507. Protestant missionaries established a hospital in Muscat in the 19th century. Like the rest of Oman, Arabic is the predominant language of the city. In addition, English, Balochi, Swahili and Indian languages such as Bengali, Gujarati, Hindi, Konkani, Malayalam, Marathi, Odia, Tamil, Telugu and Urdu are spoken by the residents of Muscat. Islam is the predominant religion in the city, with most followers being Ibadi Muslims. Non-Muslims are allowed to practice their religion, but may not proselytize publicly or distribute religious literature. In 2017 the Sultanate of Oman unveiled the Mushaf Muscat, an interactive calligraphic Quran following a brief from the Omani Ministry of Endowments and Religious Affairs
Title: Religion in Oman
Content:  In 2014, most of the Omani Muslims were followers of the Ibadi branch of Islam followed by the Sunni Islam. In 2021, an estimated percentage of 45% Omani citizens were Ibadi and 45% were Sunni Muslims only 5% were Shias and 5% were of other faiths such as Hinduism or Christianity. Virtually all non-Muslims in Oman are foreign workers. Non-Muslim religious communities include various groups of Jains, Buddhists, Zoroastrians, Sikhs, Jews, Hindus and Christians. Christian communities are centered in the major urban areas of Muscat, Sohar and Salalah. These include Catholic, Eastern Orthodox and various Protestant congregations, organizing along linguistic and ethnic lines. More than 50 different Christian groups, fellowships and assemblies are active in the Muscat metropolitan area, formed by migrant workers from Southeast Asia.
Title: Freedom of religion in Oman
Content:  Orthodox, and various Protestant congregations. These groups tend to organize along linguistic and ethnic lines. More than 50 different Christian groups, fellowships, and assemblies are active in the Muscat metropolitan area. Shi'a Muslims are a small but well-integrated minority, concentrated in the capital area and along the northern coast. The majority of non-Muslims, however, are noncitizen immigrant workers from South Asia. There are also communities of ethnic Indian Hindus. Muscat has two Hindu temples. One of them is over a hundred years old. There is also a significant Sikh community in Oman. Though there are no permanent gurudwaras, many smaller gurudwaras in makeshift camps exist and are recognised by the government. The Government of India had signed an accord in 2008 with the Omani government to build a permanent gurudwara but little progress has been made on the matter.
Title: Christianity in Oman
Content:  is inaccessible and therefore only happens on occasion. At least one St. Thomas Christian church is present in Oman, and more than 50 different Christian groups, fellowships, and assemblies are active in the Muscat metropolitan area. The Protestant Church of Oman, the Catholic Diocese of Oman and the al Amana Center (interdenominational Christian) are recognized by the Ministry of Endowments and Religious Affairs. There is also a Christian cemetery located in Muscat, operated by the Petroleum Development Oman. Islam is the official state religion, but Article 28 of the Omani constitution protects freedom of religious practices as long as they do not violate Islamic law. Therefore, Christians in Oman enjoy a considerable amount of religious freedom, although they are bound to strict rules. For example, Christians must practice 
Title: Oman
Content:  Even though the Oman government does not keep statistics on religious affiliation, statistics from the US's Central Intelligence Agency state that adherents of Islam are in the majority at 85.9%, with Christians at 6.5%, Hindus at 5.5%, Buddhists at 0.8%, Jews less than 0.1%. Other religious affiliations have a proportion of 1% and the unaffiliated only 0.2%. Most Omanis are Muslims, most of whom follow the Ibadi school of Islam, followed by the Twelver school of Shia Islam, and the Shafi`i school of Sunni Islam. Virtually all non-Muslims in Oman are foreign workers. Non-Muslim religious communities include various groups of Jains, Buddhists, Zoroastrians, Sikhs, Jews, Hindus and Christians. Christian communities are centred in the major urban areas of Muscat, Sohar and Salalah. These include Catholic, Eastern Orthodox and various Protestant congregations, organising along linguistic and ethnic lines. More than 50 different Christian groups, fellowships and assemblies are active in the Muscat metropolitan area, formed by migrant workers from Southeast Asia. There are also communities of ethnic Indian Hindus and Christians. There are also small Sikh and Jewish communities.
Title: Christianity in Oman
Content:  Eastern Orthodox Christians in Oman are under the ecclesiastical jurisdiction of Archdiocese of Baghdad, Kuwait and Dependencies, that belongs to the Eastern Orthodox Patriarchate of Antioch and All the East. The main center of Eastern Orthodoxy in Oman is the Parish in Masqat, headed by priest Michael Ajram. There are currently 24,000 Orthodox Christians, 12.5% of the overall Christian population in the country. The first Orthodox church in Oman, Sts. Constantine and Helen Church began construction in April 2019 in Muscat.
Title: Muscat
Content:  to the Arabian Peninsula. British Parliamentary papers dating back to the 19th century indicate the presence of a significant Hindu Gujarati merchants in the city Indeed, four Hindu temples existed in Muscat ca. 1760. Christianity flourished in Oman (Bēṯ Mazūnāyē "land of the Maganites"; a name deriving from its Sumerian designation) from the late 4th century to early 5th century. Missionary activity by the Assyrians of the Church of the East resulted in a significant Christian population living in the region, with a bishop being attested by 424 AD under the Metropolitan of Fars and Arabia. The rise of Islam saw the Syriac and Arabic-speaking Christian population eventually disappear. It is thought to have been 
Title: Islam in Oman
Content:  The Shi'as live along Al Batinah and Muscat coasts. There are at least seven Twelver Shia mosques in Muscat. There is also a community of Nizari Ismaili Shi'a.
Title: Islam in Oman
Content:  Islam in Oman has a has a high following. Islam is the state-religion in Oman. There are about 95% Muslims in Oman. 45% of the Muslim population of Oman follow both Sunni Islam and the Ibadi branch of the extinct sect Kharijite. Islam spread to Oman in the early years.
Title: Christianity in Oman
Content:  5.8% of the persons in Oman are Protestants, approximately 11,500 people. Oman belongs to the area of the Diocese of Cyprus and the Gulf of the Episcopal Church in Jerusalem and the Middle East. 21 Protestant denominations are present in Oman and they all fall under the umbrella of the Protestant Church of Oman (PCO). There is a campus in Salalah, one in Sohar, and two campuses in Muscat. There are four actual congregations in Muscat, all in different languages: Korean, English, Arabic, and Tagalog. There is a Pentecostal Assembly located in Muscat. It's congregants are largely Indian expats, and it is the largest Malayali congregation in the Middle East. There are over 1,500 members, and service is conducted in four different languages: Hindi, English, Malayalam, and Tamil.

Question: What is the religion of Muscat and Oman?
Answer: Ibadi.
Ibadism.
Ibāḍiyya.
Ibaḍiyya.