Family name Сымеонидоу (Сымеонидоу 
) , across the world, is an extremely rare surname. The cognomen Сымеонидоу is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Сымеонидоу | Russia |
Symeonidou, and Symeonydou