Family name Grulke (Grulke 
) , in the world, is quite a rare surname. The family name Grulke is characteristic of Germany, where it is a rare surname, the United States, and Australia. Measured by absolute frequency, it is commonest in the United States, Germany, and Brazil. Much less frequently, Grulke is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Grulke | Germany, Australia, Brazil, United States, Poland |
| dietrich grulke (b. 1939) |
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| wolfgang grulke (b. 1947) |
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| christopher m grulke researcher |
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| sigrid grulke researcher |
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| eric a grulke researcher |
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| nancy grulke researcher ORCID ID = 0000-0002-6317-5073 |
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