Surname Sŏ (徐 
, 서 
, Sŏ) , in all the world, is a prevalent family name. The cognomen Sŏ is characteristic of Eastern Asia, particularly China, where it is a prevalent surname, and South Korea, where it is a common surname.
| chŏng-gap sŏ (b. 1914) |
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| chung-sŏk sŏ (b. 1923) |
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| chang-sŏk sŏ (b. 1923) |
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| tʻae-wŏn sŏ (b. 1923) |
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| nam-chʻun sŏ (b. 1925) |
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| chŏng-uk sŏ (b. 1934) |
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| pong-nam sŏ (b. 1944) |
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| yu-sŏk sŏ (b. 1945) |
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| myŏng-su sŏ |
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