Last name ラック (Luck 
, Ruck , Lack ) , in the entire world, is a common family name. The cognomen ラック is habitual in Barbados, where it is quite a common surname, Bermuda, and Isle of Man (explore the name in all countries). Measured by absolute frequency, the name is most common in the United States, Germany, and Myanmar. Very seldom, ラック is the forename as well as the last name.