Family name Letunova (Letunova 
) , in the world, is a very rare cognomen. The family name Letunova is habitual in Estonia, where it is a rare surname, Bulgaria, and Norway, where it is a very rare surname. In absolute terms, the name is most common in Russia, Bulgaria, and Norway.
| VARIANT | COUNTRY |
|---|---|
| Letunova | Norway, Russia, Estonia, Bulgaria, Ukraine |