Surname Kostyál (Kostyál 
) , across the world, is a very rare family name. The last name Kostyál is characteristic of Eastern Europe, particularly Hungary, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kostyál | Hungary |
| kostyál ádám (b. 1792) |
|
|
| istván kostyál RO (b. 1920) |
|
|
| lászló kostyál (b. 1962) |
|