Throughout the world, Prosin (Prosin 
, Просин 
) is a very rare male first name. The first name Prosin is habitual in Southern Asia, particularly India, where it is an extremely rare male name. Much more frequently, Prosin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Prosin | Russia, Estonia, United States, India, Lithuania |
| Просин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |