Archipelago may refer to:
- Archipelago, a landform which consists of a chain or cluster of islands
- The Archipelago, Ontario, a township in Canada on Georgian Bay
- The Gulag Archipelago, a novel about the Soviet slave labour and concentration camp system by Aleksandr Solzhenitsyn
- NYSE Arca, an abbreviation of Archipelago Exchange, an online stock exchange owned by the NYSE Group
- Duchy of the Archipelago, a maritime state created in the Aegean Sea (the Cyclades) in the aftermath of the Fourth Crusade
- Bismarck Archipelago Campaign was a military campaign from 15 December 1943 to 27 November 1944