Cognomen Wettstaedt (เปียก 
, Wettstaedt 
) , in all the world, is a rare family name. The surname Wettstaedt is habitual in Germany, where it is a rare surname, the United States, where it is an extremely rare surname, and Thailand. More prevalently, Wettstaedt is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เปียก | Thailand |
| Wettstaedt | Germany, United States |
| guenter wettstaedt (b. 1928) |
|