Family name Ryakhin (Ryakhin 
, Ряхин 
) , all over the world, is a rare surname. The family name Ryakhin is habitual in Russia, where it is a rare surname, Kyrgyzstan, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Ryakhin | Russia |
| Ряхин | Kyrgyzstan, Kazakhstan, Russia, Ukraine |