Family name Sønberg (Sønberg 
) , throughout the world, is a very rare last name. The last name Sønberg is habitual in Northern Europe, particularly Denmark, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sønberg | Denmark |
| inger jensdatter sønberg Danish writer (b. 1648) |
|
Lene, Peter, Kenneth, Therese, and Mette-Marie