Cognomen Wilffert (Wilffert 
) , in the entire world, is a very rare surname. The family name Wilffert is habitual in Netherlands, where it is a rare surname, Denmark, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wilffert | Denmark, Netherlands, United States |
| bob wilffert researcher (ORCID 0000-0002-8759-5697) |
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| oscar wilffert Dutch association football player, NL (b. 1994) |
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