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Cognomen Jumnuan (Jumnuan , จำนรรจ์) , in the world, is a rare family name. The family name Jumnuan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Jumnuan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jumnuan | Thailand |