Cognomen Plaat (Pelat 
, Plate 
, Plaat 
) , all around the world, is a common last name. The cognomen Plaat is characteristic of Paraguay, where it is quite a common surname, Netherlands, where it is quite a rare surname, and Germany. Measured by absolute frequency, the name is most common in Germany, the United States, and France. Very seldom, Plaat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pelat | France, Brazil, United States, India, Indonesia |
| Plate | Germany, Paraguay, France, United States, Netherlands |
| Plaat | Australia, Germany, Brazil, United States, Netherlands |
| a. van der plaat (b. 1605) |
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| andreas johan hendrik van der plaat Dutch politician (1761-1819), NL (b. 1761) |
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pieter françois leonard plaat Dutch politician, NL (b. 1816) |
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| e.g. van der plaat (b. 1756) |
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| engelbert george van der plaat NL (b. 1756) |
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| a.h.j. van der plaat (b. 1761) |
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| jacobus plaat Dutch painter (1837-1884), NL (b. 1837) |
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| rebecca plaat (b. 1828) |
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| pieter thomas leonard grinwis plaat (b. 1854) |
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| sieberen van der plaat Dutch photographer, NL (b. 1870) |
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| arjen adrianus van der plaat Dutch photographer, NL (b. 1892) |
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truus van der plaat Dutch cyclist, NL (b. 1948) |
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| erich plaat holocaust victim, b. 1899-09-14 (b. 1899) |
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arjan van der plaat Dutch swimmer, NL (b. 1986) |
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| janneke van der plaat politician, NL (b. 1944) |
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