Surname Klaban (Klaban 
) , around the world, is a rare cognomen. The cognomen Klaban is characteristic of Czechia, where it is quite a rare surname, Croatia, where it is a rare surname, and Austria. Measured by absolute frequency, it is commonest in Czechia, the United States, and Croatia. Very seldom, Klaban is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Klaban | Czechia, Poland, Austria, United States, Croatia |
| josef klaban (b. 1889) |
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| slavomír klaban politician, CZ (b. 1922) |
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| vladimír klaban (b. 1927) |
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| rudolf klaban Austrian middle- and long-distance runner, AT (b. 1938) |
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| jiří klaban (b. 1931) |
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| josef klaban SK (b. 1932) |
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| vladimír klaban (b. 1942) |
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| josef klaban architect, CZ |
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