All around the world, Ubaldini (Ubaldini 
) is a very rare epicene forename. The forename Ubaldini is characteristic of Southern Europe, particularly Italy, where it is a rare gender-neutral name. More frequently, Ubaldini is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Ubaldini | Italy, United States, Argentina, France, Brazil |
| ruggieri degli ubaldini Italian archbishop, IT (b. 1201) |
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| ottaviano ubaldini Italian cardinal, FR (b. 1214) |
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| petruccio ubaldini Italian calligraphist and illuminator, FR (b. 1524) |
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| migliorino ubaldini Italian mercenary |
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| ottaviano ubaldini Roman Catholic bishop |
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| ruggieri degli ubaldini Roman Catholic archbishop |
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Mr, Maria, Marie, Marta, Marco, Mirta, Sonia, Steve, Alice, Allen, Anita, April, Carlo, Carla, Bruno, Bruna, Paula, Paolo, Robin, Renan, Ruben, Dario, Zach, David, Ivan, Eric, Ms, Ana, Dan, Ina, Mary, Mike, Sara, Saul, Anna, Beth, Paul, Rita, Gary, Luca, Luiz, Jose, Joao, Juan, Tony, Nora, Elsa, Vito, and Dirce