Last name Forsstrøm (Forsstrøm 
) , around the world, is a very rare cognomen. The last name Forsstrøm is habitual in Northern Europe, particularly Norway, where it is a rare surname, and Denmark, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Forsstrøm | Norway, Denmark |
Forsstroem, Forsstrom, and Forsström
| jonas forsstrøm (b. 1683) |
|
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| karin cruz forsstrøm Danish journalist, DK (b. 1978) |
|