Cognomen Gietzen (Gietzen 
) , worldwide, is quite a rare surname. The cognomen Gietzen is habitual in Isle of Man, where it is quite a rare surname, Germany, where it is a rare surname, and the United States. In absolute terms, this name is the most popular in the United States, Germany, and France.
| VARIANT | COUNTRY |
|---|---|
| Gietzen | Germany, United Kingdom, United States, Canada, France |
| thorsten gietzen researcher (ORCID 0000-0001-7948-202X) |
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| mark gietzen American activist, US |
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| thomas gietzen researcher (ORCID 0000-0003-1504-0606) |
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