Last name Sechang (Sechang 
, เสชัง ) , in all the world, is a rare cognomen. The last name Sechang is habitual in South Korea, where it is a rare surname, Thailand, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in South Korea, Thailand, and the United States. Likewise, Sechang is the forename as well as the last name.