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Cognomen Kalvan (Kalvan
, Калван
) , across the world, is a rare family name. The cognomen Kalvan is characteristic of Estonia, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine. In absolute terms, it is commonest in Russia, Brazil, and India. Likewise, Kalvan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalvan | Russia, Tanzania, Brazil, India, United States |
| Калван | Russia, Ukraine |