Surname Рамсэй-Байов (Рамсэй-Байов 
) , in all the world, is an extremely rare last name. The cognomen Рамсэй-Байов is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname. Parts of the name also exists independently as a last name Байов.
| VARIANT | COUNTRY |
|---|---|
| Рамсэй-Байов | Russia |