Last name Su-San (Su-San 
) , across the world, is quite a rare surname. The cognomen Su-San is characteristic of Japan, where it is quite a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, Su-San is the forename as well as the last name. Parts of the name also exists independently as a last name Su, and a last name San.
| VARIANT | COUNTRY |
|---|---|
| Su-San | Japan, United States, Malaysia, Australia |