Surname Tuchyn (Тучин 
, Tuchyn 
) , in all the world, is quite a rare family name. The cognomen Tuchyn is habitual in Russia, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Тучин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Tuchyn | Estonia, Ukraine |