Family name Калкін (Kalkin 
, Калкін 
) , in all the world, is a rare last name. The family name Калкін is characteristic of Turkey, where it is a rare surname, Estonia, and Ukraine, where it is a very rare surname. In absolute terms, it is commonest in Turkey, the United States, and Ukraine. Much less frequently, Калкін is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalkin | Turkey, Kazakhstan, Russia, United States, India |
| Калкін | Ukraine |