Cognomen Gidayan (Gidayan 
) , around the globe, is a very rare family name. The family name Gidayan is characteristic of Israel, where it is a very rare surname, Philippines, where it is an extremely rare surname, and India. Very seldom, Gidayan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gidayan | India, Brazil, Israel, Philippines |