| Official Name: | Aydar |
| Native Name: | Айдар |
| Native Name Lang: | ru |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Belgorod Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Belgorod Oblast |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Rovensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.05°N 91°W[1] |
Aydar (ru|Айдар) is a rural locality (a selo) and the administrative center of Aydarskoye Rural Settlement, Rovensky District, Belgorod Oblast, Russia. The population was 1,183 as of 2010.[2] There are 12 streets.
Aydar is located 19 km north of Rovenki (the district's administrative centre) by road. Staraya Raygorodka and Fomina are the nearest rural localities.[3]