Family name Ruthna (Ruthna 
) , in the world, is an extremely rare last name. The cognomen Ruthna is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more frequently, Ruthna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruthna | South Africa, Malaysia, United States, India, Democratic Republic of the Congo |