Family name Klettke (Klettke 
) , across the world, is quite a rare cognomen. The cognomen Klettke is habitual in Germany, where it is a rare surname, Canada, and the United States, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Klettke | Brazil, Canada, Argentina, United States, Germany |
| cornelia klettke DE (b. 1958) |
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| oliver bernd paul klettke (b. 1970) |
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| meike klettke Researcher ORCID(0000-0003-0551-8389) |
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| bianca klettke researcher ORCID ID = 0000-0003-4602-2435 |
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