Family name Ursa (Osa 
, Ursa 
, Yrsa 
) , in all the world, is a common cognomen. The cognomen Ursa is habitual in Aland Islands, where it is quite a common surname, Equatorial Guinea, and Slovenia, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Egypt, Nigeria, and Indonesia. Also, Ursa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Osa | India, Spain, Indonesia, Egypt, Nigeria |
| Ursa | India, Spain, Romania, Indonesia, Slovenia |
| Yrsa | Denmark, Argentina, United States, Sweden, Germany |
| Ourse | India, Malaysia, France, United States |
| mihaela ursa Romanian literary critic, RO (b. 1971) |
|
|
| ilie ursa RO |
|