Around the world, Karl-Johan (Karl-Johan 
) is a rare boy's forename. The first name Karl-Johan is characteristic of Sweden, where it is quite a rare masculine name, Denmark, where it is a rare masculine name, and Germany, where it is a very rare boy's name. Much less frequently, Karl-Johan is the last name as well as the forename. Parts of the name also exists independently as a first name Karl, and a first name Johan.
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| Karl-Johan | Norway, Czechia, Denmark, Sweden, Finland |
| karl-johan gezelius SE (b. 1866) |
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| karl-johan grenabo (b. 1906) |
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| karl-johan hansson (b. 1939) |
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| karl-johan giskeodegard (b. 1941) |
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| karl-johan blank Swedish businessman, SE (b. 1963) |
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| karl-johan stigmark Swedish photographer, SE (b. 1965) |
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| karl-johan grahn particle physicist |
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| karl-johan hellgren researcher |
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| karl-johan fredén jansson researcher (ORCID 0000-0002-3045-253X) |
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| karl-johan malmberg researcher |
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| karl-johan stjernfelt researcher |
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| karl-johan lindner researcher (ORCID 0000-0002-9735-5101) |
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| karl-johan tornborg association football player |
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| karl-johan lindholm |
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Berg, Persson, Pålsson, Larsson, Jönsson, Nilsson, Hansson, Fornell, Wiksten, Svensson, Karlsson, Lundberg, Eriksson, Olofsson, Wigander, Westberg, Sørensen, Andersson, Bengtsson, Lundström, Johansson, Strandberg, Kjöllerström, Bjellvåg, Brandal, Cervall, Rehn, Holm, Melin, Ståhl, Smeds, Byttner, Piehl, Drufva, Lantz, Ekman, Pettersson, Hjelm, Bakken, Breman, Björk, Leijon, Norén, Nyberg, Ekdahl, Hansen, Victor, Olsson, Folke, and Gyllenstorm