Last name Ragosin (Рагозин 
, Ragosin 
) , all around the world, is quite a rare cognomen. The cognomen Ragosin is habitual in Kazakhstan, where it is quite a rare surname, Russia, and Belarus, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Рагозин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Ragosin | Germany, South Africa, Spain, United States, Canada |
| l. ragosin |
|