Bangladeshis are the citizens of Bangladesh, a South Asian country centred on the transnational historical region of Bengal along the eponymous bay.

Bengali, also known by its endonym Bangla, is an Indo-Aryan language from the Indo-European language family native to the Bengal region of South Asia. With Over 250 million native speakers and another 41 million as second language speakers as of 2024, Bengali is the sixth most spoken native language and the seventh most spoken language by the total number of speakers in the world. It is the fifth most spoken Indo-European language.