Cognomen Casimiro (Casimiro 
, Касимиро 
, كاسيميرو 
) , across the world, is a common family name. The surname Casimiro is characteristic of Belize, where it is quite a common surname, Portugal, and Angola (explore the name in all countries). In absolute terms, it is commonest in Mexico, Spain, and Angola. Likewise, Casimiro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casimiro | Philippines, Angola, Peru, Spain, Mexico |
| Касимиро | Russia |
| كاسيميرو | Sudan, Iraq |
| joaquim casimiro Portuguese musician (1808-1862), PT (b. 1808) |
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| carlos benevenuto casimiro (b. 1804) |
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| ignasi de castellarnau i casimiro ES (b. 1842) |
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mirita casimiro Portuguese actress and singer (1914-1970), PT (b. 1914) |
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| lúcio agnelo casimiro Azorean jornalist and politician, PT (b. 1879) |
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| jooh casimiro Italian artist (b. 1886) |
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| augusto casimiro Portuguese journalist, PT (b. 1889) |
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manuel casimiro Portuguese artist, PT (b. 1941) |
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| nicolás casimiro Dominican singer (1911-1964), DO (b. 1911) |
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| bayani casimiro Filipino dancer, PH (b. 1918) |
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luis casimiro ES (b. 1960) |
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| fernando casimiro Portuguese sprinter, PT (b. 1931) |
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| antónio casimiro PT (b. 1934) |
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| acácio casimiro Portuguese football player/manager, PT (b. 1949) |
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| isabel maria cortesão casimiro Mozambican sociologist, MZ (b. 1955) |
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