Jasko Family History
Jasko Name Meaning
Polish (Jaśko) and Slovak (Jaško): from a pet form of the personal name Jach or directly from Jan ‘John’ (Slovak Ján) or some other name beginning with Ja-. Hungarian (Jaskó): of Slovak origin (see 1 above). Compare Yasko .
Source: Dictionary of American Family Names 2nd edition, 2022