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In all the world, Phaiwan (ไพวรรณ , ไพวัน , Phaiwan ) is quite a rare gender-neutral first name. The first name Phaiwan is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare epicene name. Much less frequently, Phaiwan is the last name as well as the forename.
Mala, Kongchai, Khabkhuntod, Panyajak, Phutthotha, Phudongnoi, Rusawang, Thibunbun, Ngamkham, Hanchana, Hommueang, Maneesang, Mungsonklang, Chaichana, Chaengsin, Chaemchaeng, Khaomuenwai, Phanmueang, Tathongrot, Ngoenthok, Wisetkaew, Phatarasetsiri, Kanhakhun, Bunsopha, Churasee, Chiraatthakun, Mabua, Sriree, Amporn, Boknoi, Phosai, Ngewlai, Uppani, Comepapak, Bunanek, Phumjumpa, Nanthaphakdee, Ritmaha, Laiudee, Jankoen, Jaiyuen, Wiwekwin, Umchansa, Singruang, Siriammat, Srithaso, Sriwilai, Chatanan, Riyawong, and Jongrungruangchai