Family name Kadayil (Kadayil 
) , worldwide, is a rare last name. The cognomen Kadayil is habitual in Western Asia, particularly Qatar, where it is a rare surname, United Arab Emirates, and Kuwait. In absolute terms, it is the most numerous in Western Asia, particularly Saudi Arabia, United Arab Emirates, and Qatar. Very seldom, Kadayil is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kadayil | Kuwait, United Arab Emirates, India, Qatar, Saudi Arabia |