Last name ตาหวาน (Tawan 
, Taewan 
, ตาหวาน ) , in the world, is quite a rare surname. The cognomen ตาหวาน is characteristic of South Korea, where it is quite a rare surname, Thailand, and Malaysia. Not in comparison with a country's population, this name is the most popular in Thailand, South Korea, and Indonesia. More frequently, ตาหวาน is the forename as well as the last name.