Cognomen Райнек (Reineck 
, Rheineck 
, Райнек 
) , worldwide, is quite a rare family name. The surname Райнек is habitual in Germany, where it is a rare surname, Argentina, and Sweden. Measured by absolute frequency, it most frequently occurs in Germany, the United States, and Argentina. Much less frequently, Райнек is the forename as well as the last name.