| Official Name: | Daydar-e Olya |
| Native Name: | دايدارعليا |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zanjan |
| Subdivision Type2: | County |
| Subdivision Name2: | Ijrud |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Halab |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Ijrud-e Pain |
| Population As Of: | 2006 |
| Population Total: | 142 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.1517°N 48.1006°W |
Daydar-e Olya (Persian: دايدارعليا, also Romanized as Dāydār-e ‘Olyā and Daydar Olya; also known as Dāidār ‘Uliya, Daydar, Dāyedār, and Dāyedār-e Bālā) is a village in Ijrud-e Pain Rural District, Halab District, Ijrud County, Zanjan Province, Iran. At the 2006 census, its population was 142, in 43 families.