Family name origins & meanings
- Polish (Błażek) : from a pet form of the personal name Błażej, a vernacular form of Blasius.
- Czech and Slovak (Blažek) : from a pet form of the personal name Blažej, Czech and Slovak form of Blasius, or a pet form of an Old Czech personal name formed with Blaži-, such as Blažislav or Blažibor.
- Croatian (northwestern Croatia) and Slovenian (western and eastern Slovenia) (all Blažek) : from a pet form of the personal name Blaž, Latin Blasius.