In the world, Herlof (Herlof 
) is a very rare boy's forename. Much less frequently, Herlof is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Herlof | Norway, United States, Germany, Nicaragua |
| herlof karl ludvig sjømo andersen Norwegian missionary (b. 1907) |
|
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| herlof harstad Norwegian contributing editor, NO (b. 1909) |
|
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| herlof gjerde Norwegian politician (b. 1936) |
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| herlof nilssen (b. 1958) |
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