Surname Gruenhage (Gruenhage 
) , all around the world, is a rare cognomen. The family name Gruenhage is characteristic of Germany, where it is a rare surname, Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gruenhage | Germany, Canada, United States |
| gary fred gruenhage Ph.D. University of California, Davis 1973 |
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| gary f. gruenhage American mathematician |
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| frank gruenhage researcher (ORCID 0000-0002-0750-0329) |
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