Family name Iong (Iong 
, Йонг 
, يونغ 
) , all over the world, is quite a rare surname. The cognomen Iong is characteristic of Macao, where it is a common surname, Taiwan, where it is quite a rare surname, and Mozambique. Much less frequently, Iong is the forename as well as the last name.
| iong weng ian Chinese politician (b. 1956) |
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| iong cho ieng Macau football manager, CN (b. 1973) |
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| iong ying loh researcher |
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| iong man tung researcher |
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| iong kim fai Macanese hurdler, CN (b. 1989) |
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| sammi iong CN (b. 1997) |
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