Family name Guilhemina (Guilhemina 
) , across the world, is an extremely rare cognomen. The family name Guilhemina is characteristic of Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname. More frequently, Guilhemina is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guilhemina | India, Brazil |