Family name Suwantha (Suwantha 
) , in all the world, is a rare cognomen. The surname Suwantha is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Suwantha is the forename as well as the last name.
Anan, Eakchai, Waranya, Witsanu, Worawit, Sasiporn, Kanchuda, Kanokwan, Khambang, Kritsada, Praweesuda, Thanawat, Sirinthip, Suphasuta, Suphachai, Attapornchai, Khanaphot, Pannathon, Preedaporn, Phornphan, Duangchan, Thanaphon, Nuntiya, Thitiporn, Janjira, Piyawat, Jude, Anong, Arnan, Paeng, Jitti, Nikom, Warut, Somded, Chaiya, Pradit, Trayut, Tirada, Mongkol, Salinee, Sakarun, Sukanya, Supanan, Akkaruch, Chanapa, Pakteema, Prisana, Phatdee, and Narongsak