Surname Duangruthai (Duangruthai 
) , all around the world, is an extremely rare cognomen. The cognomen Duangruthai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more prevalently, Duangruthai is the forename as well as the last name.
Kitja, Kaewmoon, Komkirin, Kerdchai, Paenkaeo, Thongsuk, Yuangyai, Chainikhom, Chaiyakun, Chaiwised, Petcharat, Ruangsang, Dechasiri, Duangkaew, Niamprapan, Wichaidit, Asanachatang, Boonpitchayanan, Kongkasawat, Leelapunnahuit, Wongkitisophon, Ratchatapakornchai, Boonsith, Changpan, Sridaeng, Sriwarom, Taewrob, Omsup, Sirima, Sukrod, Srinun, Pimnga, Raksin, Ruwong, Saeyang, Sachdev, Khamphukhiew, Suyarach, Khewwichian, Panaspencharoen, Promjai, Phithak, Tamboon, Tongrak, Tenpommarach, Yenraka, Muangwijit, Seewakul, Kaikhueng, and Wongwattanapaiboon