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Last name origins & meanings:

  1. Hungarian (Balás): from a form of the personal name Balázs (see Balazs).
  2. Polish; Czech and Slovak (Baláš); and Croatian (northern and eastern Croatia; Balaš and Balas): either from a reduced form of the personal name Baltazar or from Slavic forms of the Hungarian personal name Balázs (see Balazs).