Cognomen Ringstroem (Ringstroem 
) , worldwide, is a very rare family name. The family name Ringstroem is habitual in Northern Europe, particularly Denmark, where it is a rare surname, Norway, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Ringstroem | Norway, Sweden, United States, Denmark, Germany |
Ringström, and Ringstrøm