Family name Gadii (Гадйи 
, Гадий , Gadii 
) , globally, is a very rare surname. The surname Gadii is habitual in Russia, where it is a very rare surname, and India, where it is an extremely rare surname. More prevalently, Gadii is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Гадий, Гадйи | Russia |
| Gadii | Russia, United States, South Africa, India |