Cognomen Ubaldo (Ubaldo 
, Убальдо 
) , globally, is a common surname. The surname Ubaldo is habitual in Mexico, where it is quite a common surname, Philippines, and Peru, where it is quite a rare surname. Likewise, Ubaldo is the forename as well as the last name.
| antonio di ubaldo (born 1924) (b. 1924) |
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| julieanne mary di ubaldo (born 1965) (b. 1965) |
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| natalie anne di ubaldo (born 1967) (b. 1967) |
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| elena jane di ubaldo (born 1972) (b. 1972) |
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| juan ubaldo Dominican Republic boxer, DO (b. 1979) |
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| heloísa del castanhel ubaldo researcher (ORCID 0000-0001-5828-4948) |
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| edson ubaldo Brazilian writer, BR |
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| elizabeth dela cruz ubaldo M.S., Dentistry, University of Washington, 2013 |
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| federico di filippo di ubaldo |
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| marco di ubaldo |
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| mariana ubaldo Portuguese association football player, PT |
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| alondra ubaldo Mexican association football player, MX |
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