Janke Family History
Janke Name Meaning
North German (also Jänke) and Dutch: from a pet form of the personal name Jan ‘John’. Compare Jaenke and Jahnke . Germanized form (also Jänke) of Sorbian Jank Polish Czech and Sorbian Janka and also of Sorbian (and other Slavic) Janko all cognates of
Source: Dictionary of American Family Names 2nd edition, 2022