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Family name Kliengklao (Kliengklao ) , all over the world, is a very rare last name. The cognomen Kliengklao is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kliengklao | Thailand |
Tunchye, Onanong, Charuwat, Kanchana, Raweewan, Thunchaya, Salinthip, Kietkamon, Rattanaporn, and Natthanicha