Cognomen Juan A (Juan A 
) , around the world, is a rare last name. The cognomen Juan A is habitual in Spain, where it is a rare surname, Finland, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Juan A is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juan A | Peru, Dominican Republic, Spain, Puerto Rico, Mexico |