Family name Iduy (Iduy 
) , globally, is a rare cognomen. The surname Iduy is habitual in Indonesia, where it is a rare surname, Israel, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Iduy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iduy | Philippines, Indonesia, Israel, United States |