Last name Longuinos (Longuinos 
) , globally, is a very rare cognomen. The family name Longuinos is habitual in Mexico, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Longuinos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Longuinos | Mexico, Spain, Brazil, United States, Philippines |