Cognomen Karkhu (Karkhu 
) , in the entire world, is a very rare family name. The surname Karkhu is habitual in Finland, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Karkhu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karkhu | India, Finland, Russia, United States |