Family name Sijmonsma (Sijmonsma 
) , across the world, is a very rare cognomen. The surname Sijmonsma is habitual in Western Europe, particularly Netherlands, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sijmonsma | Netherlands |
| johanna sijmonsma Dutch Righteous Among the Nations, NL (b. 1883) |
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| hendrika sijmonsma Dutch Righteous Among the Nations, NL (b. 1913) |
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| gerardus sijmonsma Dutch Righteous Among the Nations, NL (b. 1915) |
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| tjeerd sijmonsma researcher |
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