Family name Hardinger (Hardinger 
) , all over the world, is a rare surname. The family name Hardinger is habitual in Austria, where it is a rare surname, Denmark, and Sweden. Measured by absolute frequency, this name is the most popular in the United States, Austria, and Sweden.
| VARIANT | COUNTRY |
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| Hardinger | Austria, Denmark, Spain, Sweden, United States |
| leopold hardinger * 1.4.1797 Wolfsegg/OÖ, † 2.9.1866 Ranshofen/OÖ. Schullehrer, Organist, Komponist. (b. 1797) |
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michael hardinger Danish-Swedish musician and singer, SE (b. 1948) |
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