Family name มั่นคง (Mankhong 
, Mankong 
, Upady ) , in the entire world, is quite a rare last name. The surname มั่นคง is habitual in Thailand, where it is quite a rare surname, India, where it is a rare surname, and Denmark. Not in comparison with a country's population, the name is most common in Thailand, India, and Nigeria. Much less frequently, มั่นคง is the forename as well as the last name.