Around the world, Sietsma (Sietsma 
) is an extremely rare unknown gender given name. Much more prevalently, Sietsma is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sietsma | Australia, United States, Spain, Netherlands, Canada |
| hein sietsma Dutch Righteous Among the Nations, NL (b. 1919) |
|
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| maggi sietsma Australian choreographer, AU (b. 1951) |
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