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Last name Keffert (Keffert
) , globally, is a very rare cognomen. The cognomen Keffert is habitual in the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much more frequently, Keffert is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keffert | Democratic Republic of the Congo, Spain, United States, United Kingdom |
Sebastian, and Mayinguidi