Family name Phiraphat (พีรพัฒน์ 
, พีรภัทร , Phiraphat ) , all over the world, is a very rare last name. The last name Phiraphat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more prevalently, Phiraphat is the forename as well as the last name.
Mahai, Thararom, Hassanee, Wanadonkun, Mekhamanang, Sutthimat, Khantaros, Khuntaros, Pongsuwan, Rakruthamrat, Wongpamorn, Chanthaket, Champathet, Phunphanang, Phuangphan, Thaveekitikul, Withanthanat, Saengamphai, Chatphutthithonkul, Bunthongsang, Paramabuddhi, Intharakanha, Pengchan, Chaisaowong, Seangamphai, Siriphan, Makrat, Sukmai, Sriyod, Chuaoen, Poohern, Pichat, Puttan, Nuyang, Saefang, Siwirot, Charoensuwan, Aupasen, Boonmee, Buarawong, Kongrom, Phiraksa, Lekkham, Tapprohm, Thongna, Meethang, Muangmai, Saiwanna, Choemue, and Watcharasawat