Cognomen Sant'Ana (Sant'Ana 
) , worldwide, is a rare family name. The surname Sant'Ana is habitual in Portugal, where it is quite a rare surname, Uruguay, where it is a rare surname, and Brazil. In absolute terms, the name is most common in Brazil, Portugal, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Sant'Ana | Australia, Portugal, France, Brazil, United States |
| justino jose de sant'ana (b. 1878) |
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| manoel zaluar de sant'ana (b. 1904) |
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| paulo sant'ana Brazilian journalist (1939-2017), BR (b. 1939) |
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| roberto sant'ana BR (b. 1943) |
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| gérson sant'ana politician from Brazil, BR (b. 1965) |
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| estela sant'ana researcher (ORCID 0000-0001-6446-6019) |
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| fabiano jf de sant'ana researcher (ORCID 0000-0002-3956-1329) |
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| jacinto de sant'ana e vasconcelos Portuguese politician and nobleman, PT |
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| genoveva sant'ana Brazilian woman, BR |
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| lívia pimentel de sant'ana researcher |
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| lucas cesar frediani sant'ana researcher (ORCID 0000-0002-8142-4336) |
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| jorge luiz guedes sant'ana researcher (ORCID 0000-0001-6521-6660) |
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| matilde lúcia de sant'ana Portuguese noblewoman, PT |
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| antonio carlos sant'ana researcher |
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| fabiano josé ferreira de sant'ana researcher at the University of Brasilia |
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