Surname Ketterman (Ketterman 
) , around the world, is quite a rare cognomen. The last name Ketterman is characteristic of the United States, where it is a rare surname, Canada, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Ketterman | Canada, Venezuela, Brazil, United Kingdom, United States |
| marvelle irene ketterman (1929-1999) (b. 1929) |
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| tom ketterman college basketball player (1949–1950) Gettysburg |
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| albert j ketterman researcher |
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| elizabeth ketterman researcher (ORCID 0000-0002-4505-258X) |
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| greg ketterman |
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| shane ketterman |
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