Józef Andrzej Grzesiak, codename Czarny (11 November 1900 in Kraków – 18 September 1975 in Gdańsk, Poland), was a Polish Scoutmaster (harcmistrz). As were the majority of Polish Scoutmasters during the Second World War, he was also a member of the AK-Szare Szeregi resistance organization.

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