Koss Family History
Koss Name Meaning
Germanized or Americanized form of Polish Slovenian Croatian Serbian Czech and Slovak Kos Sorbian Kós ‘blackbird’. East German: from a short form of the personal name Kosmas (see Kosman ). German: nickname for a gossip or a smooth-talker a variant of Kose . Jewish (Ashkenazic): variant of Kos .
Source: Dictionary of American Family Names 2nd edition, 2022