Meaning and origin
Isak is a Swedish boy name. The meaning of the name is `He Who Laughs`.
Where is it used? The name Isak is mainly used in Swedish.
It is an abbreviated form of Zack, used in English. Izzy, used in English.
How do they say it elsewhere? Yitzhak (In Jewish) Izsák (In Hungarian) Izaak (In German) Iikka (In Finnish) Iisakki (In Finnish) Isaac (In English, Jewish and in the bible) Issac (In English (Modern))