Last name Семьин (Semin 
, Semine 
, Семьин 
) , worldwide, is quite a common surname. The surname Семьин is habitual in Bosnia and Herzegovina, where it is quite a rare surname, North Macedonia, and Bahrain. In absolute terms, the name is most common in Indonesia, Philippines, and Russia. Also, Семьин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Semin | Indonesia, Russia, South Korea, Philippines, Bosnia and Herzegovina |
| Semine | Russia, Malaysia, Philippines, United States, India |
| Семьин | Russia, Ukraine |
| Semyin | Russia |