Surname Rajnova (Rajnova 
, Райнова 
, Ражнова 
) , around the globe, is a rare last name. The cognomen Rajnova is habitual in Eastern Europe, particularly Bulgaria, where it is quite a rare surname, Slovakia, and Ukraine, where it is a rare surname. In absolute terms, this name is the most popular in Eastern Europe, particularly Bulgaria, Russia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Rajnova | Georgia, Norway, Czechia, Slovakia |
| Райнова | Kazakhstan, Russia, Ukraine, Bulgaria |
| Ражнова | Kazakhstan, Russia, Ukraine, Belarus |