Surname Gidnay (Gidnay 
) , worldwide, is a very rare family name. The surname Gidnay is habitual in Sub-Saharan Africa, particularly Tanzania, where it is a very rare surname. Much less frequently, Gidnay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gidnay | Tanzania, Philippines |