Worldwide, Eday (Eday 
) is a rare epicene forename. The first name Eday is characteristic of Indonesia, where it is a very rare boy's name, Philippines, where it is a very rare mostly feminine, but seldom male name, and Mexico, where it is an extremely rare gender-neutral name. In absolute terms, it is the most numerous in Indonesia, Philippines, and India. Also, Eday is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Eday | Philippines, United States, Mexico, India, Indonesia |