Surname קלפל (Kleffel 
, קלפל 
) , throughout the world, is a rare cognomen. The family name קלפל is habitual in Denmark, where it is a rare surname, Germany, and Switzerland. Not in comparison with a country's population, it is commonest in Germany, the United States, and Denmark.
| VARIANT | COUNTRY |
|---|---|
| Kleffel | Germany, Hong Kong, Switzerland, United States, Denmark |
| קלפל | Israel |