Cognomen Svanstrom (Svanstrom 
) , in all the world, is a rare family name. The cognomen Svanstrom is habitual in Northern Europe, particularly Iceland, where it is quite a rare surname, Sweden, and Finland, where it is a rare surname. In absolute terms, it is commonest in Sweden, Finland, and Switzerland.
| VARIANT | COUNTRY |
|---|---|
| Svanstrom | Switzerland, Sweden, Finland, Iceland, Denmark |