Family name Guillermina De Lourdes (Guillermina De Lourdes 
) , all around the world, is a very rare cognomen. The surname Guillermina De Lourdes is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Guillermina De Lourdes is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guillermina De Lourdes | Costa Rica, Chile, Ecuador |