Cognomen Plancher (Plancher 
, Planko 
) , worldwide, is quite a rare last name. The last name Plancher is characteristic of Slovenia, where it is quite a rare surname, Haiti, and France, where it is a rare surname. Measured by absolute frequency, the name is most common in France, Haiti, and the United States. Much less frequently, Plancher is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Plancher | Haiti, Germany, France, Italy, United States |
| Planko | Germany, Hungary, France, United States, Slovenia |
| urbain plancher French historian, FR (b. 1667) |
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| plancher valcour French actor (1751-1815), FR (b. 1751) |
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| pierre plancher French journalist, FR (b. 1779) |
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| michele plancher painter, IT (b. 1808) |
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| giuseppe plancher IT (b. 1870) |
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| dominique plancher French politician, FR (b. 1962) |
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| christian emmanuel plancher HT (b. 1967) |
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| e. plancher researcher ORCID ID = 0000-0002-1835-1445, FR |
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| gaën plancher researcher (b. 1982) |
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| jean-marc plancher |
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Mr, Luca, Jose, John, Joao, Jean, Jill, Tati, Nans, Elie, Erna, Emma, Frã, Indy, Inel, Ivey, Olga, Olma, Yves, Yvon, Marie, Mario, Lina, Manon, Gina, Gary, Ms, Max, Mia, Ana, Kim, Luc, Jay, Eva, Isa, Marc, Mike, Seth, Alex, Alix, Andy, Anne, Arne, Roch, Remy, Ruth, Dora, Gili, and Moise