Bangladeshis in the context of "List of countries by population"

Islamic cultures or Muslim cultures refers to the historic cultural practices that developed among the various peoples living in the Muslim world. These practices, while not always religious in nature, are generally influenced by aspects of Islam, particularly due to the religion serving as an effective conduit for the inter-mingling of people from different ethnic/national backgrounds in a way that enabled their cultures to come together on the basis of a common Muslim identity. The earliest forms of Muslim culture, from the Rashidun Caliphate to the Umayyad Caliphate and early Abbasid Caliphate, was predominantly based on the existing cultural practices of the Arabs, the Byzantines, and the Persians. However, as the Islamic empires expanded rapidly, Muslim culture was further influenced and assimilated much from the Iranic, Pakistani, Bangladeshi, Indian, Caucasian, Turkic, Malay, Somali, Berber, and Indonesian cultures.

Owing to a variety of factors, there are variations in the application of Islamic beliefs in different cultures and traditions.

Bengali, also known by its endonym Bangla, is a classical Indo-Aryan language belonging to the Indo-Iranian branch of the Indo-European language family. It is primarily spoken by the Bengali people, native to the Bengal region (Bangladesh, India's West Bengal and parts of Southern Assam) as well as Tripura of South Asia. With over 242 million (24.2 crore) native speakers and another 43 million (4.3 crore) as second language speakers as of 2025, Bengali is the sixth most spoken native language and the seventh most spoken language by the total number of speakers in the world.

Bengali is the official, national, and most widely spoken language of Bangladesh, with 98% of Bangladeshis using Bengali as their first language. It is the second-most widely spoken language in India. It is the official language of the Indian states of West Bengal, Tripura and the Barak Valley region of the state of Assam. It is also the second official language of the Indian state of Jharkhand since September 2011. It is the most widely spoken language in the Andaman and Nicobar Islands in the Bay of Bengal, and is spoken by significant populations in other states including Bihar, Arunachal Pradesh, Delhi, Chhattisgarh, Meghalaya, Mizoram, Nagaland, Odisha and Uttarakhand. Bengali is also spoken by the Bengali diasporas (Bangladeshi diaspora and Indian Bengalis) across Europe, North America, the Middle East and other regions.

Indian Indonesians are Indonesians whose ancestors originally came from the Indian subcontinent. Therefore, this term can be regarded as a blanket term for not only Indonesian Indians but also Indonesians with other South Asian ancestries (e.g. Pakistanis, Bangladeshis, etc.). According to the Indian Ministry of External Affairs, there were about 120,000 people of Indian origin as well as 9,000 Indian nationals living and working in Indonesia as of January 2012. Most of them were concentrated in the province of North Sumatra and urban areas such as Banda Aceh, Surabaya, Medan, and Jakarta. However, it is quite impossible to get correct statistical figures on the Indian Indonesian population, because some of them have merged and assimilated with the indigenous population to become indistinguishable from native Indonesians.

Bengali nationalism is a form of ethnic nationalism that focuses on Bengalis as a single ethnicity by rejecting imposition of other languages and cultures while promoting its own in Bengal. Bengalis speak the Bengali language and mostly live across Bangladesh and the Indian states of West Bengal, Tripura and Assam (Barak Valley). Bengali nationalism is one of the four fundamental principles according to the Constitution of Bangladesh and was the main driving force behind the creation of the independent nation state of Bangladesh through the 1971 liberation war. Bengali Muslims make up the majority (90%) of Bangladesh's citizens (Bangladeshis), and are the largest minority in the Indian states of Assam and West Bengal, whereas Bengali Hindus make up the majority of India's citizens (Indians) in Indian states of West Bengal and Tripura, and are the largest minority in the Indian states of Assam and Jharkhand and the independent state of Bangladesh (8%).

Islam is the largest and the state religion of the People's Republic of Bangladesh. According to the 2022 census, Bangladesh had a population of about 150 million Muslims, or 91.04% of its total population of 165 million. Muslims of Bangladesh are predominant native Bengali Muslims. The majority of Bangladeshis are Sunni, and follow the Hanafi school of thought and Fiqh. Bangladesh is a de facto secular country and state.

The Bengal region was a supreme power of the medieval Islamic East. In the late 7th century, Muslims from Arabia established commercial as well as religious connection within the Bengal region before the conquest, mainly through the coastal regions as traders and primarily via the ports of Chittagong. In the early 13th century, Muhammad bin Bakhtiyar Khalji conquered Western and part of Northern Bengal and established the first Muslim kingdom in Bengal. During the 13th century, Sufi missionaries, mystics and saints began to preach Islam in villages. The Islamic Bengal Sultanate was founded by Shamsuddin Ilyas Shah who united Bengal on an ethno-linguistic platform. Bengal reached in her golden age during Bengal Sultanate's prosperous ruling period. Subsequently, Bengal viceroy Muhammad Azam Shah assumed the imperial throne. Mughal Bengal became increasingly independent under the Nawabs of Bengal in the 18th century.

Bangladeshis are one of the largest immigrant populations in Italy. As per the Italian Ministry of Labour and Social Policies annual report 2022, there were approximately 150,692 Bangladeshis living in Italy.However, In 2024, The Italian Ambassador to Bangladesh, Antonio Alessandro, stated in an interview that the figure is around 175,000-200,000 including undocumented migrants.

Bangladeshis in Japan (Japanese: 在日バングラデシュ人) form one of the smaller populations of foreigners in Japan. As of in December 2024, Japan's Ministry of Justice recorded 35,073 Bangladeshi nationals among the total population of registered foreigners in Japan.