Islam in Kazakhstan in the context of "Islam in Montenegro"

Non-denominational Muslim (Arabic: مسلمون بلا طائفة) is a Muslim who does not belong to, does not self-identify with, or cannot be readily classified under one of the identifiable Islamic schools and branches. Such Muslims do not think of themselves as belonging to a denomination but rather as "just Muslims" or "non-denominational Muslims." Muslims who do not adhere to a sect are also known as non-sectarian Muslims.

While the majority of the population in the Middle East identify as either Sunni or Shi'a, a significant number of Muslims identify as non-denominational. According to a 2012 study by the Pew Research Center, Muslims who do not identify with a sect and identify as "just a Muslim" make up a majority of the Muslims in these countries: Kazakhstan (74%), Albania (65%), Kyrgyzstan (64%), Kosovo (58%), Indonesia (56%), Mali (55%), Bosnia and Herzegovina (54%), Uzbekistan (54%), and a plurality in four countries: Azerbaijan (45%), Russia (45%), Nigeria (42%), and Cameroon (40%). They are found primarily in Central Asia. Southeastern Europe also has a large number of Muslims who do not identify with a sect. Identification as "just a Muslim" is less prevalent in North Africa (median of 12%) and South Asia (median of 4%). In Lithuania, non-denominational Muslims fall into the category of "non-traditional religious communities", and are formally separated by law from Sunnis.

Islam is the second-largest religion in Europe after Christianity. Although the majority of Muslim communities in Western Europe formed as a result of immigration, there are centuries-old indigenous European Muslim communities in the Balkans, Caucasus, Crimea, and Volga region. The term "Muslim Europe" is used to refer to the Muslim-majority countries in the Balkans and the Caucasus (Albania, Azerbaijan, Bosnia and Herzegovina, Kosovo, and Turkey) and parts of countries in Central and Eastern Europe with sizable Muslim minorities (Bulgaria, Montenegro, North Macedonia, and some republics of Russia) that constitute large populations of indigenous European Muslims, although the majority are secular.

Islam expanded into the Caucasus through the Muslim conquest of Persia in the 7th century and entered Southern Europe after the Umayyad conquest of Hispania in the 8th–10th centuries; Muslim political entities existed firmly in what is today Spain, Portugal, Sicily, and Malta during the Middle Ages. The Muslim populations in these territories were either converted to Christianity or expelled by the end of the 15th century by the indigenous Christian rulers (see Reconquista). The Ottoman Empire expanded into Southeastern Europe and consolidated its political power by invading and conquering huge portions of the Serbian and Bulgarian empires, and the remaining territories of the region, including the Albanian and Romanian principalities, and the kingdoms of Bosnia, Croatia, and Hungary between the 14th and 16th centuries. Over the centuries, the Ottoman Empire gradually lost its European territories. Islam was particularly influential in the territories of Albania, Bosnia and Herzegovina, and Kosovo, and has remained the dominant religion in these countries.

Islam is the second largest religion in the Netherlands, after Christianity, and is practised by 6% of the population according to 2023. estimates. The majority of Muslims in the Netherlands belong to the Sunni denomination. Many reside in the country's four major cities: Amsterdam, Rotterdam, The Hague and Utrecht.

The early history of Islam in the Netherlands can be traced back to the 16th century, when a small number of Ottoman merchants began settling in the nation's port cities. As a result, improvised mosques were first built in Amsterdam in the early 17th century. In the ensuing centuries, the Netherlands experienced sporadic Muslim immigration from the Dutch East Indies, during their long history as part of the Dutch overseas possessions. From the dissolution of the Ottoman Empire after the First World War until the independence of Indonesia, the Dutch East Indies contained the world's second largest Muslim population, after British India. However, the number of Muslims in the European territory of the Kingdom of the Netherlands was very low, accounting for less than 0.1% of the population.

Islam is the most popular religion in Bosnia and Herzegovina. It was introduced to the local population in the 15th and 16th centuries as a result of the Ottoman conquest of Bosnia and Herzegovina.

Muslims make the largest religious community in Bosnia and Herzegovina at around 51% of the population.

Islam in Georgia (Georgian: ისლამი საქართველოში, romanized: islami sakartveloshi) was introduced in 654 when an army sent by the Third Caliph of Islam, Uthman, conquered Eastern Georgia and established Muslim rule in Tbilisi. Currently, Muslims constitute approximately 9.9% of the Georgian population. According to other sources, Muslims constitute 10-11% of Georgia's population.

In July 2011, the Parliament of Georgia passed new law allowing religious minority groups with "historic ties to Georgia" to register. The draft of the law specifically mentions Islam and four other religious communities.

Islam is a major religious minority in the Russian Federation, which has the largest Muslim population in Europe. According to the US Federal Research Division 1998 reference book, Muslims in Russia numbered about 19% of the religious population.

Recognized under the law and by Russian political leaders as one of Russia's traditional religions, Islam is a part of Russian historical heritage, and is subsidized by the Russian government. The position of Islam as a major Russian religion, alongside Orthodox Christianity, dates from the time of Catherine the Great, who sponsored Islamic clerics and scholarship through the Orenburg Assembly.

Islam arrived in Albania mainly during the Ottoman period when the majority of Albanians over time converted to Islam under Ottoman rule. Following the Albanian National Awakening (Rilindja) tenets and the de-emphasis of religious tradition in Albania, all governments in the 20th century pursued a secularization policy, most aggressively under the People's Socialist Republic of Albania, which actively persecuted Muslims. Due to this policy, Islam, as with all other faiths in the country, underwent radical changes. Decades of state atheism, which ended in 1991, brought a decline in the religious practice of all traditions. The post-communist period and the lifting of legal and other government restrictions on religion allowed Islam to revive through institutions that generated new infrastructure, literature, educational facilities, international transnational links and other social activities.

According to the 2023 census, Islam is the largest religion, with a 50.67% majority of Albanians identifying as Muslim, including 1,101,718 (45.86%) Sunni Muslims, and 115,644 (4.81%) Bektashi Muslims.

Islam in Kosovo has a long-standing tradition dating back to the Ottoman conquest of the Balkans. Before the Battle of Kosovo in 1389, the entire Balkan region had been Christianized by both the Western and Eastern Roman Empire. From 1389 until 1912, Kosovo was officially governed by the Muslim Ottoman Empire and a high level of Islamization occurred among Catholic and Orthodox Albanians, mainly due to Sufi orders and socio-political opportunism. Both Christian and Muslim Albanians intermarried and some lived as "Laramans", also known as Crypto-Christians. During the time period after World War II, Kosovo was ruled by secular socialist authorities in the Socialist Federal Republic of Yugoslavia (SFRY). During that period, Kosovars became increasingly secularized. After the end of the communist period, religion had a revival in Kosovo. Today, 95.6% of Kosovo's population are Sunni Muslims, most of whom are ethnic Albanians. There are also non-Albanian speaking Muslims, who define themselves as Bosniaks, Gorani and Turks.

Islam in Kosovo is predominantly Hanafi Sunni, the most widespread tradition in the Balkans. Additionally, Kosovo has Sufi orders, particularly the Bektashi order, which blends elements of Shia and Sufi traditions. Other Sufi brotherhoods, such as the Halveti and Kadiri orders, also exist. According to a 2012 study by the Pew Research Center, 58% of muslims in Kosovo are non-denominational Muslims, which is practicing Islam without strict adherence to a particular sect or school of thought.