In the world, Herluf (Herluf 
) is a very rare male first name. The forename Herluf is characteristic of Denmark, where it is a rare male name, Germany, where it is a very rare boy's name, and the United States, where it is an extremely rare predominantly male, but very seldom feminine name. Much less frequently, Herluf is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Herluf | Germany, China, Australia, United States, Denmark |
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herluf trolle Danish admiral, SE (b. 1516) |
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| herluf trolle daa Danish military personnel (b. 1565) |
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| herluf børgesen trolle Danish chamberlain, DK (b. 1716) |
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herluf winge zoologist, DK (b. 1857) |
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herluf zahle barrister, DK (b. 1873) |
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| herluf kløvstad Norwegian physician (b. 1868) |
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| herluf forchhammer association football player (1875-1958), DK (b. 1875) |
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| herluf jensenius Danish artist, DK (b. 1888) |
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| herluf w. jensen (b. 1882) |
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| herluf bidstrup Danish cartoonist (1912-1988), DE (b. 1912) |
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| herluf krabbe (b. 1904) |
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| herluf nygaard Norwegian military personnel, NO (b. 1916) |
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| herluf rasmussen Danish autobiographer (b. 1920) |
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| herluf stenholt clausen Danish ichthyologist, US (b. 1921) |
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| herluf christensen Danish sprinter, DK (b. 1924) |
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