Cognomen Rørtveit (Rørtveit 
) , in all the world, is a very rare surname. The surname Rørtveit is habitual in Northern Europe, particularly Norway, where it is a rare surname, and Denmark, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rørtveit | Norway, Denmark |
| johannes rørtveit Norwegian writer, NO (b. 1943) |
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| kristine rørtveit researcher (ORCID 0000-0002-6657-1012) |
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| guri rørtveit |
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