Cognomen Swaaij (Swaaij 
) , all around the world, is a rare surname. The family name Swaaij is habitual in Netherlands, where it is a rare surname, Sweden, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Swaaij | United Kingdom, Netherlands, Sweden |
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gerardus jacobus van swaaij Dutch architect and politician (1867-1945), NL (b. 1867) |
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| bregje w m van swaaij researcher (ORCID 0000-0002-7364-8612) |
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| emmy van swaaij (b. 1982) |
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