Globally, Grzejszczak (Grzejszczak 
) is an extremely rare unknown gender given name. Much less frequently, Grzejszczak is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Grzejszczak | Australia, United States, France, Poland, Canada |
| bogdan grzejszczak Polish sportsperson and athletics competitor, PL (b. 1950) |
|