Cognomen Gettman (Gettman 
, Gettmann ) , across the world, is quite a rare last name. The family name Gettman is characteristic of Germany, where it is a rare surname, the United States, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Gettman | Canada, Australia, United States, Argentina, Germany |
| Gettmann | Germany, United States, Canada, Argentina |
| jake gettman American baseball player, US (b. 1875) |
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| jon gettman American activist, US (b. 1957) |
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| matthew gettman researcher |
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