Surname Gertje (Gertje 
) , all over the world, is a rare family name. The family name Gertje is habitual in Germany, where it is a rare surname, Argentina, where it is a very rare surname, and Netherlands. Measured by absolute frequency, it is commonest in Germany, the United States, and Argentina. Likewise, Gertje is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gertje | Indonesia, Belgium, Argentina, Germany, United States |