Cognomen Juani (Juani 
) , all around the world, is quite a rare surname. The cognomen Juani is habitual in Uruguay, where it is quite a rare surname, Spain, and Argentina. In absolute terms, it is the most numerous in Spain, Indonesia, and Argentina. More prevalently, Juani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juani | Paraguay, Spain, India, Indonesia, Argentina |
| rosa prats juani Spanish painter, active 1919-1921 |
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