Family name Biagio (Biagio 
, Blasius 
, Бьяджо 
) , around the world, is quite a common cognomen. The cognomen Biagio is characteristic of Namibia, where it is quite a rare surname, Luxembourg, and Germany. In absolute terms, the name is most common in Brazil, Germany, and Italy. More prevalently, Biagio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Biagio | Germany, Italy, Brazil, United States, India |
| Blasius | Germany, Italy, Brazil, United States, Indonesia |
| Бьяджо | Ukraine |
| giovanni battista di san biagio Italian jurisconsult (ca. 1425-1492), IT (b. 1425) |
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| saverio di biagio Italian film director, IT (b. 1970) |
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| giuliano di biagio Italian sculptor and designer, active 1482, IT |
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| claudia di biagio researcher ORCID ID = 0000-0001-8273-6211 |
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| claudia di biagio researcher (ORCID 0000-0001-9096-3166) |
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| pier luigi san biagio researcher ORCID ID = 0000-0002-4622-7361 |
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| neide brandão da san biagio Brazilian woman, founder of the local newspaper O Diário de Mogi, BR |
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Meli, Morelli, Messina, Santoro, Coppola, Palumbo, De Luca, De Rosa, Ferrara, Orlando, Chianese, Catalano, Pugliese, D'Angelo, Garofalo, Grimaldi, Giordano, Liccardo, Lombardo, Esposito, Vallefuoco, Migliaccio, Martino, Vitale, Grasso, Riccio, Marra, Mauro, Amato, Conte, Barra, Bruno, Rizzo, Russo, Gallo, Greco, Sorrentino, Leone, Fusco, Iorio, Oliva, Marino, Alfano, Caruso, Barone, Parisi, Pagano, Romano, Longo, and Carannante