Last name แข็ง (Hard 
, Stiff 
, แข็ง 
) , globally, is a common surname. The cognomen แข็ง is characteristic of Greenland, where it is a common surname, Suriname, where it is quite a common surname, and the United Kingdom, where it is quite a rare surname. In absolute terms, the name is most common in the United States, Indonesia, and the United Kingdom. Also, แข็ง is the forename as well as the last name.