Family name Phaiwan (ไพวรรณ 
, ไพวัน , Phaiwan 
) , in all the world, is a rare cognomen. The family name Phaiwan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Predominantly, Phaiwan is the forename as well as the last name.
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