Cognomen Sddd (Sddd 
) , throughout the world, is a rare family name. The last name Sddd is habitual in Taiwan, where it is a rare surname, Thailand, where it is an extremely rare surname, and India. Much less frequently, Sddd is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sddd | Malaysia, Thailand, Taiwan, India, United States |