Family name Sumardiyanto (Sumardiyanto 
) , in the world, is a rare surname. The cognomen Sumardiyanto is habitual in South-eastern Asia, particularly Indonesia, where it is a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, Sumardiyanto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumardiyanto | Indonesia, Malaysia |
| rudy sumardiyanto Indonesian police officer, ID (b. 1965) |
|