Cognomen Thairat (ไทยรัฐ 
, Thairat 
) , around the world, is a rare surname. The cognomen Thairat is habitual in Thailand, where it is a rare surname, Nigeria, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, it most frequently occurs in Thailand, India, and Nigeria. Also, Thairat is the forename as well as the last name.