The 2021 census noted that Kazakhstan is 69.31% Muslim, 17.19% Christian, 11.25% other religious beliefs and 2.25% no religious belief.

World rankings

In 2023, the country was scored 1 out of 4 for religious freedom. It was noted that legal amendments in 2022 placed extra restrictions on citizens holding religious meetings in unregistered places of worship; it was also noted that authorities had detained 75 alleged Tablighi Jamaat Muslims between 2015 and 2022.

In the same year, the country was ranked as the 48th worst place in the world to be a Christian.

The Constitution of Kazakhstan provides for freedom of religion, and the various religious communities worship largely without government interference. Local officials attempt on occasion to limit the practice of religion by some nontraditional groups; however, higher-level officials or courts occasionally intervene to correct such attempts.

The government's enforcement of previously amended laws led to increased problems for some unregistered groups. , the law on religion continues to impose mandatory registration requirements on missionaries and religious organizations. Most religious groups, including those of minority and nontraditional denominations, reported that the religion laws did not materially affect religious activities. Unregistered religious groups experienced an increase in the level of fines imposed for nonregistration in addition to stronger efforts to collect such fines. Most registered groups experienced no problems, but the Hare Krishna movement, a registered group, suffered the demolition of 25 homes as part of the Karasai local government's campaign to seize title to its land based on alleged violations of property laws.

The population maintained its long tradition of secularism and tolerance. In particular, Muslim, Russian Orthodox, Roman Catholic, and Jewish leaders reported high levels of acceptance in society. During the reporting period, the dominant Islamic and Russian Orthodox leaders publicly criticized a number of nontraditional religious groups. The number of registered religious groups and places of worship increased during 2007 for virtually all religious groups, including minority and nontraditional groups.

The U.S. government discusses religious freedom issues with the Kazakhstan government as part of its overall policy to promote human rights. The ambassador and other U.S. officials supported the country's efforts to increase links and mutual understanding among religious groups. U.S. officials engaged in private and public dialogue at all levels to urge that proposed amendments to the religion laws are consistent with the country's constitutional guarantees of religious freedom and with the country's tradition of religious tolerance. U.S. government officials visited religious facilities, met with religious leaders, and worked with government officials to address specific cases of concern. During 2007, the Embassy sponsored exchange programs for leaders of various religious groups to meet with a diverse range of counterparts in the United States. Embassy officials maintained an ongoing dialogue with a broad range of groups within the religious community.

Religious tolerance Kazakhstan supports international efforts for promoting inter-religious dialogue and tolerance. Every four years, Astana (the capital of Kazakhstan) hosts the Congress of Leaders of World and Traditional Religions is housed in the iconic Pyramid of Peace and Accord. The congress assembles religious leaders from all corners of the world to discuss, debate, and exchange views on theology, society and politics. Launched in 2003, the fourth Congress was held May 30–31, 2012 to discuss the role of religion and inter-religious dialogue in promoting global security and human development. Kazakhstan's hosting of the Congress, in the words of analyst Roman Muzalevsky, "places obligations on the government to ensure a tolerant co-existence of ethnic groups and a favorable environment for religious associations." The 2006 Congress gathered 45 delegations, while the 2012 Congress assembled a record 350 delegates from forty countries. President Nazarbayev has expressed his desire to continue this tradition.

Status of religious freedom

Legal and policy framework The Constitution of Kazakhstan provides for freedom of religion, and religious groups worshiped largely without government interference; however, local and regional officials attempted, on occasion, to limit or control the practice of religion by several groups, especially nontraditional religious communities. The Constitution defines the country as a secular state and provides the right to decline religious affiliation. The government continued to express publicly its support for religious tolerance and diversity.

The government's religion laws narrow the legal protections of religious freedom found in the Constitution. The laws were amended in 2005 to reinforce registration requirements and clarify that religious groups must register with both the central government and the local governments of individual regions (oblasts) in which they have congregations. Prior to these amendments, the government required religious organizations to register only if they wished to be accorded legal status in order to buy or rent property, hire employees, or engage in other legal transactions. Although the amended national religion laws explicitly require religious organizations to register with the government, it continues to provide that all persons are free to practice their religion "alone or together with others." To register, a religious organization must have at least ten members and submit an application to the Ministry of Justice (MOJ).

The government may deny registration based upon an insufficient number of adherents or inconsistencies between the provisions of a religious organization's charter and the law. In addition, under the Law on Public Associations, a registered organization, including a religious group, may have all activities suspended by court order for a period of three to six months for defiance of the Constitution or laws or for systematic pursuit of activities that contradict the charter and bylaws of the organization as registered. Police, procurators, and citizens may petition a court to suspend the activities of a registered organization for failure to rectify violations or for repeated violations of the law. During a suspension, the organization concerned is prohibited from speaking with the media on behalf of the organization; holding meetings, gatherings, or services; and undertaking financial transactions other than meeting ongoing contractual obligations such as paying salaries.

In practice, most religious communities choose to register with the government and are ultimately successful in obtaining registration. Nontraditional religious groups sometimes reported long delays in the process. When refusing or significantly delaying registration, the government usually claimed that religious groups' charters did not meet the requirements of the law, in some cases citing discrepancies between Russian and Kazakh language versions of a group's charter or referring a charter for expert examination. Officials in Northern Kazakhstan and Atyrau oblasts were cited by several groups as being resistant to working with nontraditional groups seeking registration.

Administrative Code Article 375 allows authorities to suspend the activities and fine the leaders of unregistered groups; Article 374-1, a related provision added to the Administrative Code by the July 2005 national security amendments, carries significantly heavier fines than Article 375. Local authorities have broad discretion in determining whether to file charges for unregistered religious activity under Article 375 or 374-1. Local governments unevenly applied these laws during the reporting period.

The Religious Issues Committee (RIC), which operates within the MOJ, serves as a liaison between religious groups and the government. In addition, the RIC serves as a consultative body within the MOJ to facilitate the registration of religious groups. The RIC also provides expert testimony to courts on religious issues, reviews religious materials obtained by law enforcement officials in their investigations, and coordinates with law enforcement officials to monitor compliance with the registration requirements.

As in previous years, government officials frequently expressed concern regarding the potential spread of political extremism and religious extremism in the country. The National Security Committee (KNB) has characterized the fight against "religious extremism" as a top priority of the internal intelligence service. An extremism law that came into effect in February 2005 applies to religious groups and other organizations. Under this law, the government has broad latitude in identifying and designating a group as an extremist organization, banning a designated group's activities, and criminalizing membership in a banned organization. By the end of the reporting period, the Hizb ut-Tahrir (HT) political movement remained the only group banned under the law. No apolitical religious organizations in the country had been outlawed as extremist.

The elections law prohibits political parties based upon ethnic, gender, or religious affiliation.

The Spiritual Association of Muslims of Kazakhstan (SAMK), a national organization with close ties to the government, is headed by the chief Mufti in Almaty and exercises significant influence over the practice of Islam in the country, including the construction of mosques. The SAMK is the primary coordinator of hajj travel and authorizes travel agencies to provide hajj travel services to citizens. Religious observers reported that the SAMK occasionally pressured nonaligned imams and congregations to join the SAMK to ensure liturgical orthodoxy. Notwithstanding SAMK influence and pressure, during the reporting period, the government registered some mosques and Muslim communities unaffiliated with the SAMK.

Neither law nor regulation prohibits foreign missionary activity. Foreign missionaries, like all visitors, are required to register with the migration police and indicate the purpose of their stay. Local and foreign missionaries are also required to register annually with the MOJ and provide information on religious affiliation, territory of missionary work, and time period for conducting that work. All literature and other materials to be used to support missionary work must be provided with the registration application; use of materials not vetted during the registration process is illegal. In addition a missionary must produce registration documents from the sponsoring religious organization and power of attorney from the sponsoring organization to be allowed to work on its behalf. The MOJ may refuse registration to missionaries whose work would be inconsistent with the law, including laws prohibiting the incitement of interethnic or interreligious hatred. The Constitution requires foreign religious associations to conduct their activities, including appointing the heads of religious associations, "in coordination with appropriate state institutions." Foreigners are permitted under the law to register religious organizations; however, the government requires that the majority of the ten founders of the organization be local citizens.

The government does not permit religious instruction in public schools. Homeschooling is permitted only for children at the preschool level, for noncitizen children, for children who want an accelerated curriculum, and for children who cannot attend public schools for family or health reasons. Homeschooled children must take intermediate and public exams at a public school. Parents may enroll children in supplemental religious education classes provided by registered religious organizations.