Cognomen Renstrøm (Renstrøm 
) , worldwide, is a very rare family name. The surname Renstrøm is habitual in Northern Europe, particularly Norway, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Renstrøm | Norway |
| margrethe renstrøm Norwegian long and triple jumper, NO (b. 1985) |
|