Family name Austheim (Austheim 
) , all over the world, is a rare surname. The cognomen Austheim is habitual in Norway, where it is quite a rare surname, Thailand, where it is an extremely rare surname, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Austheim | Brazil, Thailand, Norway |
|
åge austheim Norwegian politician and physician, NO (b. 1983) |
|
| torunn austheim Norwegian jurist, NO (b. 1959) |
|