Family name Chua (Chua 
, 蔡 
, Чуа 
) , all over the world, is a prevalent cognomen. The surname Chua is characteristic of Singapore, where it is a widespread surname, China, where it is a common surname, and Brunei (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in China, Philippines, and Singapore. Much less frequently, Chua is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Chua | Philippines, Singapore, Taiwan, Malaysia, Indonesia |
| 蔡 | China |
| Чуа | Russia, Kazakhstan |
| cai chuanmei Qing dynasty person CBDB = 91001 (b. 1806) |
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michael chua Singaporean film director, SG (b. 1901) |
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| cai chuankui Republic of China person CBDB = 91000 (b. 1872) |
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| chua cheng bok Malaysian businessman (b. 1880) |
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leon ong chua professor in the University of California, Berkeley, US (b. 1936) |
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| chua keh hai politician and sports administrator, SG (b. 1890) |
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chua lam Singaporean writer, SG (b. 1941) |
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chua jui meng Malaysian politician, MY (b. 1943) |
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chua soi lek Malaysian politician, MY (b. 1947) |
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chua thian poh Businessman and philanthropist (b. 1948) |
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| charlie chua badminton player, SG (b. 1905) |
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| chua jim neo Singaporean writer, SG (b. 1907) |
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amy chua American lawyer, writer, and legal scholar, US (b. 1962) |
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chua tian chang Malaysian politician, MY (b. 1963) |
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sonny chua Australian musician and composer, AU (b. 1967) |
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