In the world, Русиа (Rusia 
, Rusya 
, Rousia 
) is quite a common epicene first name. The first name Русиа is characteristic of Tanzania, where it is quite a rare feminine name, the Democratic Republic of the Congo, where it is a rare female name, and Georgia, where it is a rare mostly female, but seldom male name. Not in comparison with a country's population, it is the most numerous in India, Tanzania, and Indonesia. Much less frequently, Русиа is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rusia | Philippines, Democratic Republic of the Congo, India, Georgia, Tanzania |
| Rusya | Indonesia, Russia, India, Malaysia, United States |
| Rousia | Algeria, Greece, India, Brazil, United States |
| Русиа | Ukraine, Russia |