Surname Carvalhais (Carvalhais 
) , in the entire world, is quite a rare family name. The surname Carvalhais is characteristic of Portugal, where it is quite a rare surname, Brazil, where it is a rare surname, and Switzerland. Not in comparison with a country's population, it most frequently occurs in Brazil, Portugal, and France.
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| Carvalhais | Brazil, United States, Venezuela, France, Portugal |
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rodrigo pinto pizarro pimentel de almeida carvalhais Baron of Ribeira de Sabrosa and President of the Council of Ministers of Portugal (1788-1841), PT (b. 1788) |
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| josé antônio vaz de carvalhais Brazilian politician, BR (b. 1823) |
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| stuart carvalhais Portuguese illustrator, PT (b. 1887) |
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isabel estrada carvalhais Portuguese politician, PT (b. 1973) |
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| virginia carvalhais researcher |
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| nuno carvalhais researcher |
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| lilia c carvalhais researcher (ORCID 0000-0001-9882-526X) |
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| carlos carvalhais researcher |
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| josé carvalhais researcher |
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| alice carvalhais researcher (ORCID 0000-0002-7761-6124) |
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Mr, Braz, Rosa, Rose, Remy, Rita, Dany, Davi, Dina, Diva, Lais, Leny, Lucy, Luis, Luiz, Luan, Luã, Jane, Jaci, Jacy, Jose, John, Caio, Aida, Agda, Adir, Ms, Mã, Ana, Cid, Rui, Leo, Lã, Job, Jã, Tã, Joan, Nã, Ina, Ugo, Mari, Malu, Sara, Saul, Alex, Alan, Andy, Anna, Eva, and Joao