Cognomen Emma Johanna (Emma Johanna 
) , all over the world, is an extremely rare family name. The last name Emma Johanna is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more prevalently, Emma Johanna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Emma Johanna | Ecuador, Netherlands, Switzerland, Ireland, Sweden |