Janco Family History
Janco Name Meaning
Slovak (mainly Jančo); Czech (Jančo): from a derivative of the personal name Jan . Perhaps also an Americanized form of Hungarian Jancsó (a derivative of the personal name János; see Janos ) and of Hungarian Jankó Slovenian Croatian Polish Slovak and Czech Janko .
Source: Dictionary of American Family Names 2nd edition, 2022