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Cognomen Masalski (Masalski
, Масальский
) , all around the world, is quite a rare last name. The family name Masalski is habitual in Belarus, where it is quite a rare surname, Lithuania, and Poland. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Russia, Belarus, and Poland. Likewise, Masalski is the forename as well as the last name.