Family name Джапаев (Джапаев 
) , all around the world, is a very rare cognomen. The last name Джапаев is characteristic of Kyrgyzstan, where it is a rare surname, Kazakhstan, and Russia, where it is an extremely rare surname. Much less frequently, Джапаев is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Джапаев | Kyrgyzstan, Kazakhstan, Russia |