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Family name Jainuan (Jainuan ) , globally, is a very rare cognomen. The last name Jainuan is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jainuan | Thailand |
Pawan, Kittiyawadee, Ekkachai, Thidarat, Ranaichanok, Phiyatad, Kanyarut, Pattaraporn, Maneewan, Pornpan, Pairoad, Anawath, Maliwan, Anawat, Lawan, Worarat, and Nutpapassorn