Last name Valenčič (Valenčič 
) , around the globe, is a rare cognomen. The family name Valenčič is characteristic of Southern Europe, particularly Slovenia, where it is quite a rare surname, and Croatia, where it is a rare surname.
| VARIANT | COUNTRY |
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| Valenčič | Croatia, Slovenia |
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alojz valenčič Slovene member of TIGR, IT (b. 1896) |
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| fran valenčič SI (b. 1878) |
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rudi valenčič cyclist, SI (b. 1941) |
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| vlado valenčič SI (b. 1903) |
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| dušan valenčič SI (b. 1912) |
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erik valenčič journalist from Slovenia, SI (b. 1979) |
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| josip valenčič SI (b. 1925) |
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filip valenčič Slovenian association football player, SI (b. 1992) |
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| rafko valenčič SI (b. 1937) |
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| cilka dolgan-valenčič US (b. 1937) |
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| jože valenčič cyclist, SI (b. 1948) |
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| kristina valenčič politician, SI (b. 1974) |
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| dušan valenčič SI (b. 1966) |
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| mitja valenčič Slovenian alpine skier, SI (b. 1978) |
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| gojko valenčič SI |
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