Cognomen Silla (Siya 
, Silla , Silya , among others...) , worldwide, is a common family name. The cognomen Silla is habitual in Guam, where it is quite a common surname, Guinea-Bissau, and Estonia. Measured by absolute frequency, this name is the most popular in India, Philippines, and Algeria. More prevalently, Silla is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Siya, Silla, Silya | Philippines, Indonesia, Tanzania, Algeria, India |
| シラ | Japan |
| Силла | Belarus, Kazakhstan, Russia, Ukraine |
| Сулла | Kazakhstan, Russia, Kyrgyzstan, Ukraine |
| fausto cornelio silla 1st century AD Roman senator, IT (b. 50) |
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| michu of silla Ruler of Silla (b. 250) |
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| yurye of silla Ruler of the Silla State (b. 284) |
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| naemul of silla King of Silla (b. 350) |
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| jijeung of silla ruler of the Korean kingdom of Silla from 500 to 514 (b. 437) |
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| jinpyeong of silla (b. 565) |
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| muyeol of silla Ruler of Silla (b. 604) |
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| jindeok of silla (b. 650) |
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| sinmun of silla King of Silla (b. 661) |
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| hyoso of silla Silla ruler (b. 687) |
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| seongdeok of silla politician (690-737) (b. 690) |
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| hyoseong of silla King of Silla (b. 717) |
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| heondeok of silla King of Silla (b. 750) |
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| heungdeok of silla King of Silla (b. 777) |
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| aejang of silla Ruler of the Korean kingdom of Silla (b. 788) |
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