Family name Jenaro Guillermo (Jenaro Guillermo 
) , throughout the world, is an extremely rare last name. The surname Jenaro Guillermo is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Jenaro Guillermo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jenaro Guillermo | Chile |