In all the world, Gema Johanna (Gema Johanna 
) is a very rare girly forename. The given name Gema Johanna is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare feminine name. Much less frequently, Gema Johanna is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gema Johanna | Ecuador, Chile |