Surname Simien (سيمين 
, Simian 
, Simien 
) , worldwide, is quite a rare cognomen. The last name Simien is habitual in Romania, where it is quite a rare surname, Israel, and France. In absolute terms, it is commonest in the United States, France, and Romania. More prevalently, Simien is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| سيمين, سيميان | Iran |
| Simian | Argentina, United States, France, Romania, Israel |
| Simien | India, United States, France, Ethiopia, Israel |
| jean-louis simien French officer, FR (b. 1736) |
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terrance simien American singer, US (b. 1965) |
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wayne simien American basketball player, US (b. 1983) |
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justin simien American film director, US (b. 1983) |
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| tracy simien American football player and coach (born 1967), US (b. 1967) |
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| côme simien French historian |
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| jo simien researcher (ORCID 0000-0003-2170-6857) |
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| frédéric simien French geochemist and local historian |
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| evelyn simien academic |
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