In the entire world, Gretter (Gretter 
) is a rare primarily feminine, but very seldom boy's given name. The forename Gretter is habitual in Cuba, where it is a rare girly name, Italy, where it is a very rare gender-neutral name, and South Africa, where it is a very rare girly name. Measured by absolute frequency, it most frequently occurs in Cuba, the United States, and Italy. Also, Gretter is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gretter | Brazil, Italy, Argentina, Cuba, United States |