Meaning A boy's name of Czech origin, it means "hearkening." Origin of Sionek Czech , Slavic +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Sionek Similar Names Siek Simeèk Shimon Sim Simao Siemen Ximon Ximun SlavomÃr Silny Year by Year Popularity of Sionek