Surname Gruenhagen (Gruenhagen 
) , around the world, is a rare cognomen. The last name Gruenhagen is habitual in Switzerland, where it is a rare surname, Germany, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Gruenhagen | Germany, Switzerland, Canada, United States |
| charles edward gruenhagen (b. 1833) |
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| alfred gruenhagen (b. 1842) |
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| glenn gruenhagen American politician, US (b. 1952) |
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| dave gruenhagen (b. 1945) |
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