Last name Sajnin (Sajnin 
) , worldwide, is a rare family name. The cognomen Sajnin is characteristic of Argentina, where it is a rare surname, Bangladesh, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Also, Sajnin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sajnin | United States, India, Argentina, Bangladesh, Brazil |