In the world, Guillena (Guillena 
) is a rare girly forename. The first name Guillena is habitual in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is a rare feminine name. More prevalently, Guillena is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Guillena | Spain, Philippines, United States, Peru, Democratic Republic of the Congo |