Last name Wirch (Wirch 
) , around the globe, is a rare family name. The last name Wirch is habitual in Switzerland, where it is a rare surname, Canada, and Germany. Not in comparison with a country's population, the name is most common in Germany, the United States, and Canada. Much less frequently, Wirch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wirch | Germany, Switzerland, United States, Canada, New Zealand |
| jan josef wirch German architect, CZ (b. 1732) |
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| robert wirch American politician, US (b. 1943) |
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| julia lynn wirch Ph.D. University of Waterloo 1999 |
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