Surname Ydra (Ydra 
) , in the entire world, is a very rare family name. The family name Ydra is habitual in Greece, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and China. Also, Ydra is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ydra | China, Italy, United States, Greece, Venezuela |