Throughout the world, Smetankin (Smetankin 
, Сметанкин 
) is a very rare boy's given name. The forename Smetankin is habitual in Eastern Asia, particularly China, where it is an extremely rare masculine name. Predominantly, Smetankin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Smetankin | China, Russia, Belarus, Greece, Lithuania |
| Сметанкин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |