Family name origins & meanings
- Ukrainian : from the personal name Franko, a vernacular form of Latin Franciscus (see Francis).
- Polish, Czech and Slovak, and Slovenian : from a pet form of the Polish personal name Franciszek, or Czech and Slovak František, or Slovenian Frančisšek, vernacular forms of Latin Franciscus (see Francis).
- As a Slovenian surname it may also be a derivative of the personal name Frank (see Frank 2), formed with the diminutive suffix -ko.
- Jewish (eastern Ashkenazic) : from a Slavicized form of the personal name Frank.