Surname Буайхан (Буайхан 
) , around the world, is an extremely rare cognomen. The family name Буайхан is habitual in Central Asia, particularly Kyrgyzstan, where it is a very rare surname. Also, Буайхан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Буайхан | Kyrgyzstan |