Izaak \i-zaak\ as a boy's name is a variant of Isaac (Hebrew) and Yitzhak (Hebrew), and the meaning of Izaak is "laughter".

The baby name Izaak sounds like Izak, Izaac and Isaak. Other similar baby names are Izsak, Izik, Itzak, Isak, Iziah and Izaiah.