Surname דקר (Decker 
, Dekker , דקר 
) , in the world, is a widespread cognomen. The last name דקר is characteristic of Western Europe, particularly Netherlands, where it is a common surname, Luxembourg, where it is quite a common surname, and Belgium (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, Netherlands, and Germany. Very seldom, דקר is the forename as well as the last name.