Last name สู่ขวัญ (Sukhwan 
, สู่ขวัญ, Tohkwan ) , all around the world, is a rare surname. The family name สู่ขวัญ is habitual in South Korea, where it is a rare surname, Thailand, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in South Korea, Thailand, and China. More frequently, สู่ขวัญ is the forename as well as the last name.