Surname Gajder (Gajder 
) , worldwide, is a very rare family name. The surname Gajder is habitual in Hungary, where it is a rare surname, Germany, where it is an extremely rare surname, and India. Likewise, Gajder is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gajder | India, Poland, Germany, Hungary |