Sandwip is an island along the south eastern coast of Bangladesh.It is also spelled "Sandvip" both are mostly used.It is a sub-division of Chittagong District. It is situated at the estuary of the Meghna River on the Bay of Bengal and separated from the Chittagong coast by the Sandwip channel. It has a population of nearly 400,000. There are 15 unions in Sandwip. There are also as many as fifteen different wards, 62 mahallas and 34 villages on Sandwip Island. The entire island is 50 kilometers long and 5-15 kilometers wide.

History
Sandwip Island in Bangladesh has a great historical legacy. The island itself is about 3000 years old and it has been ruled by many different people over the centuries, including Delwar Khan. It was a Portuguese and Arakanese pirate stronghold during the 17th century and even today some of the architecture on the island reflects this part of the island’s history. However, the governor of Bengal saw fit to put an end to this in 1665 as part of attempts to stop his people from being misled by the wild fancies of these unreligious and thieving individuals. Under British rule its location proved to be a bit of an administrative problem. Today it is well and truly a part of Bangladesh. It is not very developed, but where it is developed you may see remnants of its interesting past.

Ecology
One of the nice things about Sandwip Island in Bangladesh is that it has been formed by silt deposits from the Meghna river. This makes it an incredibly fertile island – something which the people of the island have been exploiting for years. Large crops of rice, dal, vegetables, coconuts, battle leave and wheat have all been grown on the island at some point in its history. Today the main crops are melons, mangos, pineapples, gaab, jam, coconut and various crops. Sandwip has also gained a reputation for being a premier ship manufacturer. There are a lot of different things to see on this incredible little island.