Kostka Family History
Kostka Surname Meaning
Polish, Czech, and Slovak: from a pet form of the old personal name Kost 1 and local equivalents (for some see Kostyk) of Constant and Constantine.
Possibly also a nickname from a derivative of Polish kość, Czech kost, and Slovak kosť ‘bone’ (see Kost).
Source: Dictionary of American Family Names 2nd edition, 2022
