Family name Кулькаев (Кулькаев 
) , all over the world, is a very rare cognomen. The last name Кулькаев is habitual in Kazakhstan, where it is a rare surname, and Russia, where it is an extremely rare surname. Much less frequently, Кулькаев is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Кулькаев | Kazakhstan, Russia |