Cognomen ออสติน (Ostin 
, Austrin 
, Ottin 
) , in all the world, is quite a rare last name. The surname ออสติน is characteristic of Estonia, where it is quite a rare surname, Honduras, and Bulgaria, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in France, Indonesia, and the United States. Likewise, ออสติน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ostin | France, Democratic Republic of the Congo, Indonesia, Guatemala, India |
| Austrin | Indonesia, United Kingdom, United States, India, Mexico |
| Ottin | France, Estonia, China, United States, Italy |
| ออสติน | Thailand |