| Jadar | |
| Other Name: | Jidr |
| Native Name: | جدر |
| Settlement Type: | Village |
| Pushpin Map: | Yemen |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Yemen |
| Subdivision Type: | Country |
| Subdivision Name: |  Yemen |
| Subdivision Type1: | Governorate |
| Subdivision Name1: | Sanaa |
| Subdivision Type2: | District |
| Subdivision Name2: | Bani Matar |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Timezone: | Yemen Standard Time |
| Utc Offset: | +3 |
| Coordinates: | 15.4636°N 44.1786°W[1] |
| Elevation M: | 2207 |
Jadar (ar|جدر), also transliterated as Jidr or Jadir, is a village in Bani al-Harith District of Amanat al-Asimah Governorate, Yemen.[1] It consists of two parts, Jidr al-A‘la and Jidr al-Asfal.[2]
According to the 10th-century writer al-Hamdani, it was one of the villages granted by Sayf ibn Dhi Yazan to the Bani Shihab, a tribe now generally living in the area to the south of Sanaa.[2]