Last name ท่าทราย (Tahsai 
, Thasai 
, ท่าทราย) , throughout the world, is a rare cognomen. The surname ท่าทราย is characteristic of Thailand, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, ท่าทราย is the forename as well as the last name.