Bangladeshis (Bengali: বাংলাদেশী [ˈbaŋladeʃi]) are the citizens of Bangladesh, a South Asian country centered on the transnational historical region of Bengal along the eponymous bay.

Bangladeshi citizenship was formed in 1971, when the permanent residents of the former East Pakistan were transformed into citizens of a new republic. Bangladesh is the world's eighth most populous nation. The vast majority of Bangladeshis are ethnolingustically Bengalis, an Indo-Aryan people. The population of Bangladesh is concentrated in the fertile Bengal delta, which has been the center of urban and agrarian civilizations for millennia. The country's highlands, including the Chittagong Hill Tracts and parts of the Sylhet Division, are home to various tribal minorities.

Bengali Muslims are the predominant ethnoreligious group of Bangladesh with a population of 150.36 million, which makes up 91.04% of the country's population as of 2022. The minority Bengali Hindu population made up approximately 7.95% of the population of the country according to the 2022 Census Non-Bengali Muslims make up the largest immigrant community; while the Tibeto-Burman Chakmas, who speak the Indo-Aryan Chakma language, are the largest indigenous ethnic group after Indo-Aryan Bengalis. The Austroasiatic Santhals are the largest aboriginal community.

The Bangladeshi diaspora is concentrated in the Arab world, North America and the United Kingdom. A significant number of Non-Resident Bangladeshis (NRBs) have dual citizenship in different countries.