Bangladesh (বাংলাদেশ, lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ ), is a sovereign country in South Asia. It shares land borders with India and Myanmar (Burma). The country's maritime territory in the Bay of Bengal is roughly equal to the size of its land area. Bangladesh is the world's eighth most populous country as well as its most densely-populated, to the exclusion of small island nations and city-states. Dhaka is its capital and largest city, followed by Chittagong, which has the country's largest port. Bangladesh forms the largest and easternmost part of the Bengal region. Bangladeshis include people from a range of ethnic groups and religions. Bengalis, who speak the official Bengali language, make up 98% of the population. The politically dominant Bengali Muslims make the nation the world's third largest Muslim-majority country. Islam is the official religion of Bangladesh.
Most of Bangladesh is covered by the Bengal delta, the largest delta on Earth. The country has 700 rivers and 8,046 km of inland waterways. Highlands with evergreen forests are found in the northeastern and southeastern regions of the country. Bangladesh has many islands and a coral reef. The longest unbroken natural sea beach of the world, Cox's Bazar Beach, is located in the southeast. It is home to the Sundarbans, the largest mangrove forest in the world. The country's biodiversity includes a vast array of plant and wildlife, including endangered Bengal tigers, the national animal.