Family name Sigifredo (Sigifredo 
) , in all the world, is quite a common cognomen. The family name Sigifredo is habitual in Mexico, where it is quite a rare surname, Spain, where it is a rare surname, and Colombia. Likewise, Sigifredo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sigifredo | Costa Rica, Mexico, Colombia, United States, Peru |