Cognomen Tjong-Ayong (Tjong-Ayong 
) , in the world, is a very rare surname. The cognomen Tjong-Ayong is habitual in Western Europe, particularly Netherlands, where it is a rare surname, and Germany, where it is a very rare surname. Parts of the name also exists independently as a last name Tjong, and a last name Ayong.
| VARIANT | COUNTRY |
|---|---|
| Tjong-Ayong | Germany, Netherlands |
| frits tjong-ayong NL (b. 1912) |
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| carry-ann tjong-ayong Dutch writer, politician and poet, NL (b. 1941) |
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