Surname Secundus (Segundo 
, Second 
, Sikan 
) , all around the world, is a common family name. The surname Secundus is habitual in Mexico, where it is quite a common surname, Spain, and Nicaragua (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Mexico, Spain, and Philippines. Also, Secundus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Segundo | Spain, Mexico, Ecuador, Argentina, Peru |
| Second | Philippines, Spain, Indonesia, Democratic Republic of the Congo, Venezuela |
| Sikan | Philippines, India, Indonesia, Argentina, Venezuela |
| Secundus | Brazil, Italy, Nigeria, United States, Germany |
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caius plinius secundus 1st century Roman military commander and writer, IT (b. 20) |
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| quintus vibius secundus Roman senator and suffect consul in 86 AD (b. 50) |
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| publius pomponius secundus 1st century Roman politician, poet and writer (b. 50) |
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| quintus poppaeus secundus Roman suffect consul 9 AD (b. 50) |
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| julius secundus Roman orator (b. 50) |
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| lucius cilnius secundus commander of Cohors I Cisipadensium in 93 AD (b. 50) |
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| tiberius julius secundus (b. 50) |
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| titus didius secundus (b. 50) |
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| marcus statorius secundus (b. 50) |
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| publius cassius secundus Roman governor of Numidia in 138 AD (b. 100) |
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| quintus clodius secundus commander of veterana Cohors III Brittonum in 157 AD (b. 150) |
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| marcus cominius secundus 2nd century AD senator, suffect consul and governor (b. 150) |
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| gaius caelius secundus (b. 150) |
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| titus flavius secundus (b. 150) |
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| titus appalius alfinus secundus (b. 150) |
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