Cognomen แหวนทอง (แหวนทอง 
, Waenthong 
, Ringthong 
) , around the world, is a rare surname. The cognomen แหวนทอง is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, แหวนทอง is the forename as well as the last name.