Family name Santo (Santu 
, Santo , سانتو 
, along with others...) , across the world, is a widespread cognomen. The cognomen Santo is characteristic of Panama, where it is a common surname, the Dominican Republic, where it is quite a common surname, and Portugal (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Brazil, Bangladesh, and Indonesia. More prevalently, Santo is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Santo, Santu | Bangladesh, Italy, Indonesia, India, Brazil |
| سانتو | Iraq, Egypt, Sudan, Saudi Arabia |
| サント | Japan |
| ซันโต | Thailand |
| Санто | Ukraine, Russia, Kyrgyzstan, Kazakhstan |
| סנטו | Israel |
Mito, Mitsudo, Mitsuto, Mitudo, Mituto, Papež, Saint, Sampe, San, Sancto, Sando, Sandoh, Sankta, Sannoe, Sanpe, Sant, Santa Gloria, Santin, Santoh, Santos, Santou, Santuccia, Santuzza, Santò, Santó, Santô, Svatý, Sánto, Sãntõ, Thánh, Yamado, Yamadou, Yamafuji, Święty, Šanto, Σαντο, Мито, Сандо, Святий, Сейнт, Сен, סאנטו, สันโต, สันโท, សន្ទ, セイント, 三多, 圣多, 塞特, and 山道
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santo domingo Castilian priest and founder of the Dominican Order, ES (b. 1170) |
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fernando iii el santo 13th-century king of Castile, Leon and Galicia, ES (b. 1199) |
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mariano santo Italian surgeon, IT (b. 1488) |
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| roque del espíritu santo PT (b. 1525) |
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| magdalena del espíritu santo Spanish writer and nun, ES (b. 1560) |
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antónio do espírito santo PT (b. 1632) |
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antonia lucía del espíritu santo EC (b. 1646) |
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| josé del espíritu santo writer (b. 1609) |
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ignacia del espíritu santo Filipino religious sister (1663-1748), PH (b. 1663) |
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| vicente do espírito santo PT (b. 1730) |
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francisca del espíritu santo French nun and founder of the Franciscanas de Montpellier, FR (b. 1820) |
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qorpo santo Brazilian playwright, poet and journalist, BR (b. 1829) |
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| francisco dos santo (b. 1776) |
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| gustav moritz santo PL (b. 1802) |
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| philip santo Australian politician, GB (b. 1818) |
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