A dhow is a traditional Arab sailing vessel with one or more lateen sails. It is primarily used to carry heavy items, like fruit, along the coasts of the Arabian Peninsula, Pakistan, India and East Africa. Larger dhows have crews of approximately thirty people, while smaller dhows typically have crews of around twelve.

Even down to the present day, dhows make commercial journeys between the Arab or Persian Gulf and East Africa using sails as their only means of propulsion. Their cargo is mostly dates and fish to East Africa and mangrove timber to the lands of the Persian Gulf. They often sail south with the monsoon in winter or early spring, and back again to Arabia in late spring or early summer.

The term 'dhow' is also applied to small, traditionally-constructed vessels used for trade in the Red Sea and the Persian Gulf area and the Indian Ocean from Madagascar to the Bay of Bengal. Such vessels typically weigh 300 to 500 tons, and have a long, thin hull design.

Dhow also refers to a family of early Arab ships that used the lateen sail, the latter of which the Portuguese likely based their designs for the caravel (known to Arabs as sambuk, boom, baggala, ghanja and zaruq).