Last name Budau (Budau 
) , all over the world, is quite a rare cognomen. The cognomen Budau is habitual in Romania, where it is quite a rare surname, Slovenia, and Slovakia, where it is a rare surname. Measured by absolute frequency, the name is most common in Romania, Italy, and Germany. Much less frequently, Budau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Budau | Germany, Italy, Canada, India, Romania |
| janez budau IT (b. 1807) |
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| leopold budau IT (b. 1838) |
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| arthur budau AT (b. 1856) |
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elza budau Slovenian speech writer, poet, SI (b. 1941) |
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| johannes horst budau researcher |
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| lea irene kieselhausen von budau |
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