Last name Joanhna (Joanhna 
) , globally, is an extremely rare surname. The surname Joanhna is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname, and Mexico. More prevalently, Joanhna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Joanhna | Mexico, United States, Venezuela, Philippines |