The outrigger canoe is a type of canoe featuring one or more lateral support floats known as outriggers, which are fastened to one or both sides of the main hull. The outrigger bestows greater stability and seaworthiness upon a canoe. Smaller canoes often employ a single outrigger on the port side, while larger canoes usually emply a double outrigger configuration.
Outrigger canoes were originally developed in the islands of Southeast Asia for sea travel. There is speculation that such forms of transport were one means by which early humans migrated to Australia and throughout Polynesia.
The technology has persisted into the modern age. Outrigger canoes can be quite large fishing or transport vessels, and in the Philippines, outrigger canoes (called 'bangcas') are often fitted with gasoline engines.