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Cognomen Güelfo (Guelfo
, Güelfo
) , worldwide, is a rare surname. The surname Güelfo is habitual in Italy, where it is a rare surname, Argentina, and Norway. In absolute terms, it most frequently occurs in Italy, Argentina, and the United States. Also, Güelfo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guelfo | Spain, Italy, France, United States, Argentina |
| Güelfo | Spain, Argentina |