Surname 里茨 (Ritz 
, Ritts 
, 里茨) , worldwide, is a common last name. The cognomen 里茨 is habitual in Western Europe, particularly Switzerland, where it is quite a common surname, Germany, where it is quite a rare surname, and Luxembourg. In absolute terms, it most frequently occurs in the United States, Germany, and France. Much less frequently, 里茨 is the forename as well as the last name.