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Last name Sō (宗 , Sō
, Со
) , in all the world, is a widespread surname. The family name Sō is habitual in China, where it is quite a common surname, Kyrgyzstan, where it is a rare surname, and Kazakhstan. Not in comparison with a country's population, it most frequently occurs in China, Russia, and Kazakhstan. Very seldom, Sō is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 宗 | China |
| Sō | Algeria, China, Myanmar, Egypt |
| Со | Ukraine, Kazakhstan, Russia, China, Kyrgyzstan |
| Esou | United States, India, South Africa, Nigeria |