Globally, הדאיה (הדאיה 
) is an extremely rare unknown gender first name. Also, הדאיה is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| הדאיה | Israel |
|
עובדיה הדאיה Israeli rabbi, IL (b. 1889) |
|
| שלום הדאיה rabbi, IL (b. 1864) |
|