San Salvador Island in the context of Islands of the Bahamas

The Bahamas, officially the Commonwealth of the Bahamas, is an island country located within the Lucayan Archipelago in the Atlantic Ocean. It contains 97 per cent of the archipelago's land area and 88 per cent of its population. It comprises more than 3,000 islands, cays and islets in the Atlantic Ocean, located north of Cuba and north-west of the island of Hispaniola (split between the Dominican Republic and Haiti) and the Turks and Caicos Islands, southeast of the US state of Florida and east of the Florida Keys. The capital and largest city is Nassau on the island of New Providence. The Royal Bahamas Defence Force describes the Bahamas' territory as encompassing 470,000 km (180,000 sq mi) of ocean space.

The Bahama islands were inhabited by the Arawak and Lucayans, a branch of the Arawakan-speaking Taíno, for many centuries. Christopher Columbus was the first European to see the islands, making his first landfall in the "New World" in 1492 when he landed on the island of San Salvador. Later, the Kingdom of Spain shipped the native Lucayans to Hispaniola and enslaved them there, after which the Bahama islands were mostly deserted from 1513 until 1648, as nearly all native Bahamians had been forcibly removed for enslavement or had died of European diseases. In 1649 English colonists from Bermuda, known as the Eleutheran Adventurers, settled on the island of Eleuthera.

The Bahamas are a group of about 700 islands and cays in the western Atlantic Ocean, of which only between 30 and 40 are inhabited. The largest of the islands is Andros Island, located north of Cuba and 200 kilometres (120 miles) southeast of Florida. The Bimini islands are to its northwest. To the North is the island of Grand Bahama, home to the second-largest city in the country, Freeport. The island of Great Abaco is to its east. In the far south is the island of Great Inagua, the second-largest island in the country. Other notable islands include Eleuthera, Cat Island, San Salvador Island, Acklins, Crooked Island, and Mayaguana. Nassau is the capital and largest city, located on New Providence. The islands have a tropical savannah climate, moderated by the Gulf Stream. The total size is 13,878 km (5,358 mi). Due to the many widespread islands it has the 41st largest Exclusive Economic Zone of 654,715 km (252,787 mi).

The islands are surface projections of two oceanic Bahama Banks - the Little Bahama Bank and the Great Bahama Bank. The highest point is only 63 metres (207 feet) above sea level on Cat Island; the island of New Providence, where the capital city of Nassau is located, reaches a maximum elevation of only thirty-seven meters. The land on the Bahamas has a foundation of fossil coral, but much of the rock is oolitic limestone; the stone is derived from the disintegration of coral reefs and seashells. The land is primarily either rocky or mangrove swamp. Low scrub covers much of the surface area. Pineyards are found on four of the northern islands: Grand Bahama, Great Abaco, New Providence, and Andros. On some of the southern islands, low-growing tropical hardwood flourishes. Although some soil is very fertile, it is also very thin. Only a few freshwater lakes and just one river, located on Andros Island, are found in the Bahamas.