Last name Grebenc (Grebenc 
) , around the globe, is a rare surname. The family name Grebenc is habitual in Slovenia, where it is quite a common surname, Croatia, where it is a rare surname, and Canada. Not in comparison with a country's population, it is the most numerous in Slovenia, the United States, and Canada.
| VARIANT | COUNTRY |
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| Grebenc | Slovenia, Canada, Argentina, Germany, United States |
| placid grebenc SI (b. 1909) |
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| jože m. grebenc SI (b. 1911) |
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| franc grebenc SI (b. 1923) |
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| andrej grebenc SI (b. 1949) |
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| alojzij grebenc SI (b. 1950) |
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| vera grebenc SI (b. 1967) |
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| tine grebenc researcher, SI |
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| vera grebenc researcher |
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| ivan grebenc SI |
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| stanka grebenc SI |
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| jan grebenc Slovenian handball player, SI (b. 1992) |
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