Last name Johanaa (Johanaa 
) , in the world, is an extremely rare surname. The cognomen Johanaa is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and Mexico. More prevalently, Johanaa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Johanaa | Mexico, Colombia, Venezuela, Brazil, Argentina |