A lateen sail is a triangular sail that is attached to a long yard or spar that is positioned diagonally on the mast of a sailboat. It is a common sight among traditional sailing vessels, particularly in the Mediterranean, in the Middle East, and in Southeast Asia. The lateen sail is also known by various other names, depending on the region, such as Auric sail, Settee sail, and Arabic sail. In some parts of the world, it is known as a Spritsail or a Maltese sail. No matter what name it goes by, the lateen sail remains an iconic symbol of seafaring and maritime history.