All over the world, Dda (Dda 
, دضا , ددة ) is a rare epicene forename. The forename Dda is habitual in Algeria, where it is a rare masculine name, Egypt, where it is a rare unisex name, and Saudi Arabia, where it is a very rare boy's name. Measured by absolute frequency, it is the most numerous in Pakistan, Egypt, and Algeria. More frequently, Dda is the last name as well as the forename.