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Family name Ridder (Ritter , Ridder , 里德 ) , throughout the world, is a widespread cognomen. The family name Ridder is habitual in Western Europe, particularly Liechtenstein, where it is a widespread surname, Germany, where it is quite a common surname, and Switzerland (explore the name in all countries). In absolute terms, it is commonest in Germany, the United States, and Brazil. Very seldom, Ridder is the forename as well as the last name.