Surname שידיאק (Chidiac 
, שידיאק 
) , worldwide, is quite a common last name. The surname שידיאק is habitual in Lebanon, where it is a common surname, Luxembourg, where it is quite a rare surname, and United Arab Emirates. Measured by absolute frequency, it most frequently occurs in Lebanon, Australia, and United Arab Emirates. Very seldom, שידיאק is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chidiac | Australia, France, United Arab Emirates, Lebanon, Nigeria |
| שידיאק | Israel |