Family name Juan Ireneo (Juan Ireneo 
) , around the globe, is an extremely rare last name. The cognomen Juan Ireneo is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Juan Ireneo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juan Ireneo | Peru, Philippines, Chile, Argentina |