Cognomen Ketterling (Ketterling 
) , in the world, is a rare last name. The surname Ketterling is habitual in the United States, where it is a rare surname, Germany, where it is a very rare surname, and New Zealand. In absolute terms, it is commonest in the United States, Germany, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Ketterling | Canada, Spain, New Zealand, Germany, United States |
| jeffrey a ketterling researcher ORCID ID = 0000-0002-1389-7756 |
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| rhett p. ketterling researcher |
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