Surname 姜 (Kang 
, 姜 , Chiang 
, and others...) , in the world, is a prevalent cognomen. The cognomen 姜 is characteristic of South Korea, where it is a widespread surname, China, where it is a common surname, and British Virgin Islands (explore the name in all countries). Measured by absolute frequency, it is the most numerous in China, South Korea, and Malaysia. Very seldom, 姜 is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kang | United States, South Korea, Indonesia, Malaysia, China |
| 姜 | China |
| Chiang | Taiwan, United States, Indonesia, Malaysia, China |
| 강 | South Korea |
| Goeng | United States, India, Malaysia, Indonesia |
| Jiāng | Myanmar |
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姜維 Chinese Shu Han state general (202-264), CN (b. 202) |
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| 姜某 Tang dynasty person CBDB=140606, CN (b. 658) |
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姜子牙 military strategist of King Wen of Zhou and King Wu of Zhou, CN (b. 1128) |
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姜晟 Qing dynasty politician, CN (b. 1730) |
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姜桂題 Republic of China person CBDB = 63914, CN (b. 1844) |
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姜立夫 Chinese mathematician and educator, CN (b. 1890) |
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姜椿芳 Chinese translator, CN (b. 1912) |
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| 姜丹书 Chinese artist, CN (b. 1885) |
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姜恩柱 Chinese politician, CN (b. 1938) |
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姜昆 Chinese comedian, CN (b. 1950) |
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姜文 Chinese actor, screenwriter, and director, CN (b. 1963) |
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| 姜明远 catholic priest (1921-2008), CN (b. 1921) |
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| 姜中平 Hong Kong artist, CN (b. 1922) |
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| 姜啟我 Victim of post-war Taiwan's authoritarian regime, TW (b. 1926) |
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| 姜文鑑 Victim of post-war Taiwan's authoritarian regime, TW (b. 1926) |
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