Cognomen Sangnopparat (Sangnopparat 
) , across the world, is a very rare family name. The last name Sangnopparat is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Adisa, Jirat, Sumidtra, Pongsak, Sukonphit, Kanokorn, Tawatchai, Pongsakorn, and Thawatchai