Around the globe, Klapper (Klapper 
, קלפר 
) is a very rare epicene first name. The first name Klapper is characteristic of Eastern Asia, particularly China, where it is an extremely rare gender-neutral name. Much more prevalently, Klapper is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Klapper | Poland, Austria, Hungary, United States, Germany |
| קלפר | Israel |
| osvald klapper Czech graphic, illustrator, painter and artist (1930-2010), CZ (b. 1930) |
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| radu klapper Israeli poet and writer (1937-2006), RO (b. 1937) |
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| wit klapper Polish sportsperson, PL (b. 1944) |
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