Family name דואדי (Duadi 
, דואדי ) , all around the world, is a rare cognomen. The cognomen דואדי is characteristic of Israel, where it is a rare surname, Tanzania, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Israel, India, and Tanzania. Likewise, דואדי is the forename as well as the last name.