In the entire world, Wierman (Wierman 
, Wiermann 
) is a very rare masculine given name. The forename Wierman is characteristic of Eastern Asia, particularly China, where it is an extremely rare male name. Much more prevalently, Wierman is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Wierman | Brazil, China, United States, Germany, Venezuela |
| Wiermann | Brazil, Switzerland, South Africa, United States, Germany |