Cognomen Martadi (Martadi 
) , globally, is a rare last name. The surname Martadi is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, Malaysia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Likewise, Martadi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Martadi | Thailand, Malaysia, Indonesia |