Across the world, Sijmonsma (Sijmonsma 
) is an extremely rare unknown gender first name. Much more prevalently, Sijmonsma is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sijmonsma | Netherlands |
| symon sijmonsma Dutch Righteous Among the Nations, NL (b. 1875) |
|