Surname · Masculine
Jonczynski
Jonczynski Pronunciation
Jonczynski is pronounced yon-CHIHNS-kee (/jɔnˈt͡ʂɨnski/).
Alive in 2025
5
National rank
#305479
Top voivodeship
Kuyavian-Pomeranian
Residents of Poland
1 in 8,526,337