The Port of Chittagong is the largest seaport in Bangladesh, located by the estuary of the Karnaphuli River in Patenga, near the city of Chittagong. It is a deepwater seaport dominated by trade in containerised manufactured products (especially ready made garments), raw materials and to a lesser extent passengers. It is one of the two main sea port of Bangladesh - most of the export and import of the country are handled via this port.Window berthing system was introduced at the seaport on August 6, 2007, enabling the sea port to provide the arrival and departure times of all ships. Two berths at the port terminal are kept in reserve for emergency. In 2006 the port handled 27 million tonnes of cargo and 0.8 million tonnes of containers . The port handled 1.5 million TEUs (twenty equivalent units) containers in 2010-11, up from 12.12 lakh TEUs in the previous year, according to the CPA Traffic Department.
The history of Chittagong port dates back to the fourth century B.C. Malayan history chronicles the journey of the sailor Buddha Gupta from Chittagong to Malaya in the 4th century B.C. The Periplus of the Erythraean Sea documents the existence of Chittagong port in the ancient times. Chittagong derives its name from the Arabic word Shetgang (Shet means delta and Gang the river). The Arab traders considered Chittagong to be the delta of the Ganges.