Throughout the world, Antongiulio (Antongiulio 
) is a rare boy's forename. The given name Antongiulio is characteristic of Southern Europe, particularly Italy, where it is a rare male name. Much less frequently, Antongiulio is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Antongiulio | Italy, United States |
| antongiulio bucci researcher |
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| antongiulio pelonzi Italian politician |
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| antongiulio mangia researcher |
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| antongiulio faggiano researcher |
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| antongiulio mauro |
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Bua, Martone, Mancuso, Atteritano, Ballivo, Deponte, Gallina, Granito, Gigante, Lentini, Luciano, Luciani, Verardo, Fiorino, Iannone, Mancaruso, Cuttitta, Grimaldi, Tempesta, Tomasillo, Cappannella, Costantino, Odarda, Frulio, Favero, Lucani, Lai, Mele, Cera, Noto, Mauro, Sacco, Curro, Rocco, Lippi, Verde, Pellegrino, Fiume, Moneta, Chiefa, Cassol, Ceruti, Cusmai, Pisani, Deiana, Goracci, Grande, Lizzio, Macchi, and Piscitelli