Cognomen Khoa (Khoa 
, Хоа 
, コア ) , all around the world, is a common surname. The surname Khoa is characteristic of Vietnam, where it is quite a common surname, Namibia, where it is quite a rare surname, and Malaysia. Not in comparison with a country's population, it is commonest in Vietnam, Malaysia, and Japan. Likewise, Khoa is the forename as well as the last name.
| phêrô vũ đăng khoa CN (b. 1790) |
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| phạm văn khoa Vietnamese film director, VN (b. 1914) |
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phạm anh khoa VN (b. 1985) |
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| trương văn khoa Vietnamese politician, VN (b. 1952) |
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| thân văn khoa Vietnamese politician, VN (b. 1958) |
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| phạm việt anh khoa VN (b. 1981) |
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| mạc văn khoa Vietnamese comedian, VN (b. 1992) |
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| dương văn khoa association football player, VN (b. 1994) |
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