Cognomen 哈达 (Hatta 
, 哈达 
) , in the entire world, is a common family name. The last name 哈达 is habitual in South-eastern Asia, particularly Malaysia, where it is quite a common surname, Brunei, where it is quite a rare surname, and Indonesia. In absolute terms, it is the most numerous in Indonesia, Malaysia, and Morocco. Much less frequently, 哈达 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hatta | Indonesia, Philippines, Japan, Morocco, Malaysia |
| 哈达 | China |