Cognomen Usnan (Usnan 
) , around the world, is a rare family name. The surname Usnan is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and Philippines. Not in comparison with a country's population, it is commonest in Indonesia, Malaysia, and Nigeria. More prevalently, Usnan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Usnan | Philippines, India, Indonesia, Nigeria, Malaysia |