Family name Kosterman (Kosterman 
) , across the world, is a rare surname. The cognomen Kosterman is habitual in Netherlands, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United States. In absolute terms, it is commonest in Netherlands, the United States, and South Africa.
| VARIANT | COUNTRY |
|---|---|
| Kosterman | Netherlands, Canada, United States, South Africa, Australia |
|
letty kosterman Dutch television presenter, NL (b. 1935) |
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| hans kosterman NL (b. 1945) |
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| richard j. kosterman Ph.D. University of California, Los Angeles 1991 |
|
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| y. kosterman botanist |
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| clif kosterman actor |
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| rick kosterman researcher (ORCID 0000-0002-6856-3163) |
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