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Surname Harnkijroong (Harnkijroong
) , all over the world, is an extremely rare family name. The cognomen Harnkijroong is habitual in Thailand, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Harnkijroong | United States, Thailand |
Pong, Orakool, Tosaphon, Kriengsak, and Roongruang