Worldwide, Orsia (Orsia 
) is a rare feminine forename. The forename Orsia is habitual in Greece, where it is quite a rare female name, and the Democratic Republic of the Congo, where it is a rare girly name. Much less frequently, Orsia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Orsia | Greece, Brazil, United States, Philippines, Democratic Republic of the Congo |