Worldwide, Iigaya (Iigaya 
) is an extremely rare unknown gender given name. Predominantly, Iigaya is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Iigaya | India, China, United States, Singapore |
| miho iigaya researcher (ORCID 0000-0002-9310-2916) |
|