Cognomen Verdam (Verdam 
) , globally, is a rare surname. The family name Verdam is characteristic of Netherlands, where it is quite a rare surname, Estonia, where it is a rare surname, and Brazil, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Netherlands, Brazil, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Verdam | Estonia, Netherlands, Australia, Brazil, Germany |
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gideon jan verdam NL (b. 1802) |
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jacob verdam university teacher from the Netherlands (1845-1919), NL (b. 1845) |
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koos verdam Dutch politician, NL (b. 1915) |
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| jan verdam (1883-1964) (b. 1883) |
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| hedda verdam Dutch water polo player |
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| mathilde g e verdam researcher (ORCID 0000-0002-2479-8817) |
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| h.d. verdam botanist |
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| froukje jantina verdam researcher |
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| a.w. verdam |
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