Surname גדליהו (Gedalyahu 
, גדליהו ) , across the world, is a rare cognomen. The family name גדליהו is characteristic of Israel, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Also, גדליהו is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gedalyahu | Israel, United States, United Kingdom |
| גדליהו | Israel |