Surname Dornyai (Dornyai 
) , throughout the world, is an extremely rare family name. The cognomen Dornyai is habitual in Hungary, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Likewise, Dornyai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dornyai | Hungary, Spain, Thailand |