Cognomen Ротер (Rother 
, Ротер 
) , in the entire world, is a common last name. The surname Ротер is habitual in Western Europe, particularly Germany, where it is quite a common surname, Austria, where it is quite a rare surname, and Switzerland. Measured by absolute frequency, the name is most common in Germany, the United States, and Brazil. Much less frequently, Ротер is the forename as well as the last name.