Cognomen オースタン (Austan 
, オースタン 
) , around the world, is a rare family name. The last name オースタン is habitual in Malaysia, where it is a very rare surname, Myanmar, and Israel. Not in comparison with a country's population, the name is most common in Malaysia, Myanmar, and Pakistan. More frequently, オースタン is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Austan | Malaysia, United States, India, Pakistan, Myanmar |
| オースタン | Japan |