| Official Name: | Nilaq |
| Native Name: | نيلق |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ardabil |
| Subdivision Type2: | County |
| Subdivision Name2: | Kowsar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Sanjabad-e Gharbi |
| Population As Of: | 2006 |
| Population Total: | 709 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Coordinates: | 37.7022°N 48.2014°W |
Nilaq (Persian: نيلق, also Romanized as Nīlaq and Neylaq; also known as Lailia, Leyleyeh, and Ley-lya) is a village in Sanjabad-e Gharbi Rural District, in the Central District of Kowsar County, Ardabil Province, Iran. At the 2006 census, its population was 709, in 143 families.