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Cognomen Klan (Klan
, Клан
, クラン
, among others...) , across the world, is quite a rare family name. The cognomen Klan is habitual in Czechia, where it is quite a rare surname, Germany, where it is a rare surname, and Denmark. In absolute terms, it is commonest in Germany, Czechia, and the United States. Very seldom, Klan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klan | Czechia, India, Indonesia, United States, Germany |
| Клан | Kazakhstan, Russia, Ukraine |
| クラン | Japan |
| Clann | United States, Philippines |
| קלאן | Israel |