Cognomen ديدار (Didar 
, Deedar , ديدار 
) , across the world, is a common surname. The surname ديدار is characteristic of Western Asia, particularly Oman, where it is quite a common surname, Qatar, and United Arab Emirates, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Bangladesh, Iran, and Oman. More frequently, ديدار is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Didar, Deedar | Oman, India, Bangladesh, Pakistan, Saudi Arabia |
| ديدار | Saudi Arabia, Iran, Iraq |