Last name แบค (Baek 
, แบค 
, Bacj 
) , in the world, is quite a common family name. The family name แบค is habitual in Denmark, where it is quite a common surname, Singapore, where it is quite a rare surname, and Myanmar. Not in comparison with a country's population, it is commonest in the United States, Indonesia, and Denmark. Also, แบค is the forename as well as the last name.