Cognomen Plenio (Plenio 
) , globally, is a very rare last name. The family name Plenio is characteristic of Switzerland, where it is a very rare surname, Germany, and Honduras. Measured by absolute frequency, it is commonest in Germany, Switzerland, and Philippines. Likewise, Plenio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Plenio | Brazil, Germany, Peru, Switzerland, Philippines |
| ernst plenio PL (b. 1860) |
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martin bodo plenio German physicist, DE (b. 1968) |
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| martin b plenio researcher (ORCID 0000-0003-4238-8843) |
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| herbert plenio researcher, DE |
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| kurt plenio |
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