Cognomen إسحق (Isaac 
, Ishak , Yitzchak 
) , worldwide, is a widespread surname. The last name إسحق is habitual in Israel, where it is a widespread surname, Malaysia, where it is a common surname, and Antigua and Barbuda (explore the name in all countries). In absolute terms, this name is the most popular in Nigeria, Malaysia, and Mexico. Also, إسحق is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isaac, Ishak | Kenya, United States, Ghana, Nigeria, Malaysia |
| Yitzchak | Panama, South Africa, United Kingdom, United States, Israel |
| إسحق | Egypt, Libya, Sudan, Syria, Saudi Arabia |
Iiro, Iisakki, Ike, Isaacs, Isaacus, Isaak, Isac, Isacco, Isak, Ishq, Issaak, Issac, Itzhak, Izaac, Izaak, Izak, Izsak, Izsák, Yitzhak, Айзек, Айк, Изаак, Ике, Исаак, Исаак, Айзек, Исаако, Исак, Исако, Исхак, Ицхак, Ісаак, Ісак, Іцхак, אייזיק, יצחק, أوتو, إسحاق, اسحاق, ايزاك, ইসহাক, アイク, イケ, and イサク
| إسحق سدر Minister of Communication & Information Technology at State of Palestine, PS (b. 1963) |
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| إسحق حسين Egyptian notable of the first half of the 20th century, EG |
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| إسحق مرتضى association football player, KW |
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| عبد الله إسحق politician, LB |
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