| Official Name: | Seilab |
| Native Name: | سيلاب |
| Settlement Type: | village |
| Mapsize: | 150px |
| Pushpin Map: | Iran |
| Coordinates: | 37.5978°N 45.8697°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | County |
| Subdivision Type3: | Bakhsh |
| Subdivision Type4: | Rural District |
| Subdivision Name1: | East Azerbaijan |
| Subdivision Name2: | Azarshahr |
| Subdivision Name3: | Howmeh |
| Subdivision Name4: | Shiramin |
| Population Total: | 1,414 |
| Population As Of: | 2006 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
Seylab (Persian: سيلاب, also Romanized as Seylāb, Seilab, and Sīlāb) is a village in Shiramin Rural District, Howmeh District, Azarshahr County, East Azerbaijan Province, Iran. At the 2006 census, its population was 1,414, in 379 families.