Last name Cos (Cos 
, 科斯 
, Цьось 
) , all around the world, is a common cognomen. The cognomen Cos is habitual in Guatemala, where it is quite a common surname, Philippines, where it is quite a rare surname, and Algeria. Much less frequently, Cos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cos | Algeria, Guatemala, Spain, Philippines, Argentina |
| 科斯 | China |
| Цьось | Ukraine, Belarus, Russia |
| Цось | Ukraine, Russia |
| pleistias of cos (b. 301) |
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| nicomedes of cos Hellenistic official (b. 350) |
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| cadmo di cos politician (b. 450) |
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ana maría de la campa y cos MX (b. 1734) |
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jose maria cos Mexican politician, MX (b. 1770) |
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| mariana de berrio y de la campa y cos marquesa de Jaral del Berrio 1752-1803 (b. 1752) |
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francisco landero y cos Mexican politician, MX (b. 1828) |
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| joan pont i cos ES (b. 1813) |
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| eduardo ximénez cos Spanish composer (1823-1900), ES (b. 1823) |
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| jose maria rodriguez y cos writer (b. 1823) |
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| maría pérez de cos y de cos (b. 1920) |
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| griselda cos benedictine nun of Catalonia, ES (b. 1937) |
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| bernardo cos Argentinian association football player, AR (b. 1949) |
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| bernardo fernández cos Argentinian association football player, AR (b. 1949) |
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| jesús de cos Spanish writer and comics artist, ES (b. 1957) |
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