Last name Poortinga (Poortinga 
) , all over the world, is a rare family name. The cognomen Poortinga is characteristic of Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and Canada. Not in comparison with a country's population, it is commonest in Netherlands, the United States, and Canada.
| VARIANT | COUNTRY |
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| Poortinga | Germany, Canada, United States, Netherlands, Belgium |
| ype poortinga Dutch writer (1910-1985), NL (b. 1910) |
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| ate poortinga researcher, ORCID id # 0000-0001-9647-2317 |
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| gretchen poortinga researcher |
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| wouter poortinga researcher |
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