Surname Ицхак (יצחק 
, Yitzchak 
, Yitzchok 
, along with others...) , around the globe, is a common family name. The last name Ицхак is characteristic of Israel, where it is a common surname, Hungary, where it is a rare surname, and Mexico, where it is a very rare surname. In absolute terms, it is commonest in Israel, the United States, and Hungary. More frequently, Ицхак is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| יצחק | Israel |
| Yitzchak | Poland, Israel, United Kingdom, United States, Panama |
| Yitzchok | Israel, United Kingdom, Canada, South Africa, United States |
| Yitzhak | Moldova, Israel, India, United States, Indonesia |
| Itzhak | Poland, Israel, Mexico, United States, Hungary |
| Ichak | India, Canada, United States, Indonesia, Hungary |
| Ицхак | Israel, Lithuania, Belarus, Russia, Ukraine |
Icchak, Iiro, Iisakki, Ike, Is., Isaac, Isaach, Isaack, Isaacus, Isaak, Isac, Isacco, Isach, Isak, Ishak, Issaak, Issac, Itschak, Itshak, Izaac, Izaak, Izak, Izsak, Izsák, Jicchak, Kook, Luria, Navon, Perlman, Yitshak, Айзек, Айк, Изаак, Ике, Исаак, Исаак, Айзек, Исаако, Исак, Исако, Исхак, Ицхок, Ісаак, Ісак, Іцхак, אייזיק, أوتو, إسحاق, إسحق, اسحاق, ايزاك, ইসহাক, アイク, イケ, and イサク