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Last name Auster (Auster
, Ostro
, Ostrea
) , in the world, is quite a rare surname. The cognomen Auster is characteristic of Norway, where it is quite a rare surname, Denmark, where it is a rare surname, and Germany. In absolute terms, this name is the most popular in the United States, Philippines, and Germany. Much less frequently, Auster is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Auster | Norway, Philippines, France, United States, Germany |
| Ostro | Norway, France, Australia, United States, United Kingdom |
| Ostrea | Canada, Philippines, Switzerland, New Zealand, United States |
| Аустер | Kazakhstan, Russia, Ukraine |