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Cognomen Oso (Oso
, Urso
, Osso
) , all over the world, is a common last name. The family name Oso is characteristic of Italy, where it is quite a common surname, Solomon Islands, and Syria, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Italy, Nigeria, and Japan. Much less frequently, Oso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oso | Italy, Japan, Nigeria, United States, Argentina |
| Urso | Philippines, Italy, Nigeria, United States, Argentina |
| Osso | Italy, Nigeria, United States, Argentina, Democratic Republic of the Congo |
| وسو | Iran, Morocco, Iraq, Sudan |