Cognomen Valencak (Valencak 
) , in the world, is a rare surname. The family name Valencak is characteristic of Slovenia, where it is quite a rare surname, Slovakia, and Austria, where it is a rare surname. Very seldom, Valencak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Valencak | Austria, Germany, France, Slovakia, Slovenia |
| hannelore valencak Austrian writer, AT (b. 1929) |
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| julia valencak researcher (ORCID 0000-0003-4737-2920) |
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| teresa g valencak researcher |
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