Family name Демян (Demian 
, Демян 
, Demyan 
) , globally, is a common surname. The last name Демян is characteristic of Moldova, where it is quite a common surname, Romania, and Lebanon. Not in comparison with a country's population, this name is the most popular in Romania, Egypt, and Nigeria. Also, Демян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demian | Nigeria, Egypt, Romania, Argentina, United States |
| Демян | Russia, Bulgaria, Belarus, Kazakhstan, Ukraine |
| Demyan | Egypt, Romania, Lebanon, United States, Brazil |
| демян, павел станиславович Soviet association football player, KZ (b. 1960) |
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