Last name Blockx (Blockx 
) , in the world, is quite a rare cognomen. The surname Blockx is habitual in Belgium, where it is quite a rare surname, Croatia, where it is a very rare surname, and Netherlands. Not in comparison with a country's population, it most frequently occurs in Belgium, Spain, and Germany. Much less frequently, Blockx is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Blockx | Germany, Belgium, Spain, France, Netherlands |
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jan blockx Belgian composer, pianist and teacher, BE (b. 1851) |
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| frank blockx Belgian architect, BE (b. 1885) |
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| roger blockx cyclist, BE (b. 1943) |
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| frank blockx correspondence chess player |
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| ines blockx researcher |
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| keoni blockx Belgian performing artist, BE |
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| griet blockx BE |
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| alexander blockx Belgian tennis player |
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Mr, Kaat, Paul, Roel, Rudi, Rudy, Daan, Dirk, Gert, Gerd, Greg, Lars, Lisa, Lise, Lore, Ludo, Joos, Joke, Jens, Tony, Tijs, Nico, Bram, Bert, Bart, Anja, Ms, Jo, May, Sam, Sep, Ann, Kim, Rob, Guy, Luc, Elly, Jan, Tom, Tim, Viv, Wim, Marc, Sara, Stef, Alex, Andy, Anne, Jef, and Eddy