Andros Island is an archipelago within the Bahamas, the largest of the Bahamian Islands. Politically considered a single island, Andros in total has an area greater than all the other 700 Bahamian islands combined. The land area of Andros consists of hundreds of small islets and cays connected by mangrove estuaries and tidal swamplands, together with three major islands: North Andros, Mangrove Cay, and South Andros.

The three main islands are separated by "bights", estuaries that trifurcate the island, connecting the island's east and west coasts. It is 104 miles (167 km) long by 40 miles (64 km) wide at the widest point.

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