Around the globe, Juan Arnulfo (Juan Arnulfo 
) is a rare boy's forename. The first name Juan Arnulfo is habitual in Latin America and the Caribbean, particularly Peru, where it is a rare masculine name, and Chile. Very seldom, Juan Arnulfo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Juan Arnulfo | Chile, Peru, Mexico, Ecuador, Costa Rica |