Cognomen יצחק שי (יצחק שי 
) , across the world, is an extremely rare last name. The surname יצחק שי is characteristic of Western Asia, particularly Israel, where it is a very rare surname. Much more prevalently, יצחק שי is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| יצחק שי | Israel |