Family name Vestreng (Vestreng 
) , across the world, is a rare last name. The cognomen Vestreng is habitual in Norway, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vestreng | Norway, United States |
| frank vestreng Norwegian ice hockey player (b. 1961) |
|