| Official Name: | Qaleh-ye Seyyed |
| Native Name: | قلعه سيد |
| Settlement Type: | village |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Tehran |
| Subdivision Type2: | County |
| Subdivision Name2: | Rey |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Kahrizak |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kahrizak |
| Population As Of: | 2006 |
| Population Total: | 307 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
Qaleh-ye Seyyed (Persian: قلعه سيد, also Romanized as Qal‘eh-ye Seyyed) is a village in Kahrizak Rural District, Kahrizak District, Ray County, Tehran Province, Iran. At the 2006 census, its population was 307, in 68 families.