Title: Demographics of Russia
Content:  73% of Russians declared themselves as Christians—out of which 71% were Orthodox, 1% were Catholic, and 2% were Other Christians, while 15% were unaffiliated, 10% were Muslims, and 1% followed other religions. According to various reports, the proportion of Atheists in Russia is between 16% and 48% of the population. Islam is the second-largest religion in Russia, and it is the traditional religion amongst the bulk of the peoples of the North Caucasus, and amongst some Turkic peoples scattered along the Volga-Ural region. Buddhists are home to a sizeable population in the three Siberian republics: Buryatia, Tuva, Zabaykalsky Krai, and in Kalmykia; the only region in Europe where Buddhism is the most practised religion.
Title: Russia
Content:  Russia is a secular state by constitution, and its largest religion is Christianity. It has the world's largest Orthodox population, and according to different sociological surveys on religious adherence, between 41% to over 80% of Russia's population adhere to the Russian Orthodox Church. In 2017, a survey made by the Pew Research Center showed that 73% of Russians declared themselves as Christians—out of which 71% were Orthodox, 1% were Catholic, and 2% were Other Christians, while 15% were unaffiliated, 10% were Muslims, and 1% followed other religions. According to various reports, the proportion of Atheists in Russia is between 16% and 48% of the population. Islam is the second-largest religion in Russia, and it is the traditional religion amongst the bulk of the peoples of the North Caucasus, and amongst some Turkic peoples scattered along the Volga-Ural region. Buddhists are home to a sizeable population in the three Siberian regions: Buryatia, Tuva, Zabaykalsky Krai; and form the majority of the population in Kalmykia: the only region in Europe where Buddhism is the most practised religion.
Title: Culture of Russia
Content:  Christianity, Islam, Buddhism, and Judaism are Russia's traditional religions, deemed part of Russia's "historical heritage" in a law passed in 1997. Estimates of believers widely fluctuate among sources, and some reports put the number of non-believers in Russia as high as 16–48% of the population. Russian Orthodoxy is the dominant religion in Russia. 95% of the registered Orthodox parishes belong to the Russian Orthodox Church while there are a number of smaller Orthodox Churches. However, the vast majority of Orthodox believers do not attend church on a regular basis. Nonetheless, the church is widely respected by both believers and nonbelievers, who see it as a symbol of Russian 
Title: Demographics of Russia
Content:  Russia is a secular state by constitution, and its largest religion is Christianity. It has the world's largest Orthodox population. As of a different sociological surveys on religious adherence; between 41% to over 80% of the total population of Russia adhere to the Russian Orthodox Church. Other branches of Christianity present in Russia include Roman Catholicism (approx. 1%), Baptists, Pentecostals, Lutherans and other Protestant churches (together totalling about 0.5% of the population) and Old Believers. There is some presence of Judaism, Buddhism, Hinduism and other pagan beliefs are also present to some extent in remote areas, sometimes syncretized with one of the mainstream religions. In 2017, a survey made by the Pew Research Center showed 
Title: Religion in Russia
Content:  Religion in Russia is diverse with Christianity, especially Russian Orthodoxy being the most widely professed faith, but with significant minorities of non-religious people and adherents of other faiths. A 1997 law on religion recognises the right to freedom of conscience and creed to all the citizenry, the spiritual contribution of Orthodox Christianity to the history of Russia, and respect to "Christianity, Islam, Buddhism, Judaism and other religions and creeds which constitute an inseparable part of the historical heritage of Russia's peoples", including ethnic religions or Paganism, either preserved, or revived. According to the law, any religious organisation may be recognised as "traditional", if 
Title: Religion in Russia
Content:   Islam is the second largest religion in Russia after Orthodox Christianity. It is the historically dominant religion among some Caucasian ethnic groups (notably the Chechens, the Ingush and the Adyghe), and some Turkic peoples (notably the Tatars and the Bashkirs). In 2012, Muslims in Russia were 9,400,000 or 6.5% of the total population. However, the Arena Atlas did not survey the populations of two federal subjects with Islamic majorities which together had a population of nearly 2 million, namely Chechnya and Ingushetia, thus the total number of Muslims may be slightly larger. The Muslim community in Russia continues to grow, having reached 25 million in 2018, according to the grand mufti of Russia, Sheikh Rawil Gaynetdin. Among these Muslims, 6,700,000 or 4.6% of the total 
Title: Religion in Russia
Content:  Christianity was the religious self-identification of 47.1% of the Russian population in 2012. Other polls give different results: In the same year 2020 the Levada Center estimated that 63% of Russians were Christians; in 2020 the Public Opinion Foundation estimated that 63% of the population was Christian; in 2011 the Pew Research Center estimated that 71% of Russians were Christians; in 2011 Ipsos MORI estimated that 69% of Russians were Christians; and in 2021 the Russian Public Opinion Research Center (VCIOM) estimated that ~67% of Russians were Christians. Orthodox Christianity is the dominant religion of the country, and, besides it, Old Believers and Lutheranism also have had a considerable role in the multiethnic history of Russia. Evangelicalism and Catholicism (among Russians) are relatively recent additions to Christianity in Russia.
Title: Eastern Orthodoxy by country
Content:  Eastern Orthodoxy is the predominant religion in the world's largest country, Russia (77%), where roughly half the world's Eastern Orthodox Christians live. The religion is also heavily concentrated in the rest of Eastern Europe, where it is the majority religion in Ukraine (65.4% –77%), Romania (82%), Belarus (48% –73% ), Greece (95%–98%), Serbia (97%), Bulgaria (88%), Moldova (93%), Georgia (84%), North Macedonia (65%), Cyprus (89%) and Montenegro (72%); it is also predominant in the disputed territories of Abkhazia, South Ossetia and Transnistria. Significant minorities are present in several European countries: Bosnia and Herzegovina (31%), Latvia (18%), Estonia (14%), Albania (7%), Lithuania (4%), Croatia (4%), Slovenia (2%), and Finland (1.5%). In the former Soviet republics of Central Asia, Eastern Orthodoxy constitutes the dominant religion in northern Kazakhstan, representing 23.9% of the population of the region, and is also a significant minority in Kyrgyzstan 
Title: Russians
Content:  Czar's divine right to rule, icons, the Trinity as outlined by the Nicene Creed, Orthodox fasts, military service, and practices including water baptism. Other world religions have negligible representation among ethnic Russians. The largest of these groups are Islam with over 100,000 followers from national minorities, and Baptists with over 85,000 Russian adherents. Others are mostly Pentecostals, Evangelicals, Seventh-day Adventists, Lutherans and Jehovah's Witnesses. Since the fall of the Soviet Union various new religious movements have sprung up and gathered a following among ethnic Russians. The most prominent of these are Rodnovery, the revival of the Slavic native religion also common to other Slavic nations, Another movement, very small in comparison to other new religions, is Vissarionism, a syncretic group with an Orthodox Christian background.
Title: Soviet Union
Content:  Christianity and Islam had the highest number of adherents among the religious citizens. Eastern Christianity predominated among Christians, with Russia's traditional Russian Orthodox Church being the largest Christian denomination. About 90% of the Soviet Union's Muslims were Sunnis, with Shias being concentrated in the Azerbaijan SSR. Smaller groups included Roman Catholics, Jews, Buddhists, and a variety of Protestant denominations (especially Baptists and Lutherans). Religious influence had been strong in the Russian Empire. The Russian Orthodox Church enjoyed a privileged status as the church of the monarchy and took part in carrying out official state functions. The immediate period following the establishment of the Soviet state included a struggle 

Question: what are the predominant religions in russia?
Answer: Russian Orthodox Church.