Cognomen Ladewig (Ladewig 
) , in the world, is quite a rare family name. The family name Ladewig is habitual in Aland Islands, where it is quite a common surname, Germany, where it is quite a rare surname, and Denmark. In absolute terms, the name is most common in Germany, the United States, and Brazil.
| VARIANT | COUNTRY |
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| Ladewig | Australia, Germany, Denmark, Brazil, United States |
| theodor ladewig German teacher and classical philologist, DE (b. 1812) |
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| carl laser ladewig DE (b. 1855) |
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| paul ladewig BY (b. 1858) |
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| carl ladewig (b. 1859) |
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| franz ladewig DE (b. 1873) |
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| rudolf ladewig German architect, DE (b. 1893) |
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| wilhelm ladewig German decathlete and high jumper (1906-1979), DE (b. 1906) |
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| marion ladewig American ten-pin bowler, US (b. 1914) |
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| annemarie ladewig DE (b. 1919) |
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| dieter ladewig German sculptor, DE (b. 1953) |
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| patricia w. ladewig (b. 1945) |
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| gesa ladewig badminton player, DE (b. 1970) |
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| nathalia miranda ladewig researcher ORCID ID = 0000-0002-5192-986X |
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| erik ladewig researcher (ORCID 0000-0002-6661-1803) |
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| bradley p ladewig researcher ORCID ID = 0000-0002-2135-1913 |
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