Surname Demesin (Демесин 
, Demesin 
) , in the entire world, is a very rare family name. The last name Demesin is characteristic of Kazakhstan, where it is a very rare surname, Philippines, where it is an extremely rare surname, and the United States. More prevalently, Demesin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Демесин | Kazakhstan, Azerbaijan, Russia |
| Demesin | Kazakhstan, United States, Philippines |