Family name Вадар (Vadar 
, Вадар 
) , across the world, is a common cognomen. The last name Вадар is habitual in India, where it is quite a rare surname, and Myanmar, where it is a very rare surname. Very seldom, Вадар is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vadar | Romania, United Kingdom, India, Iraq, Myanmar |
| Вадар | Russia |