Cognomen Мартай (Мартай 
, Martai 
, Martay 
) , throughout the world, is a rare family name. The surname Мартай is habitual in Hungary, where it is quite a rare surname, Canada, where it is a very rare surname, and Malaysia. In absolute terms, it most frequently occurs in Hungary, Indonesia, and the United States. Likewise, Мартай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Мартай | Kazakhstan, Russia |
| Martai | Indonesia, Malaysia, Hungary, United States, Canada |
| Martay | Germany, United States, India, Canada, France |