| Official Name: | Qaleh-ye Esmail Aqa |
| Native Name: | قلعه اسماعيل اقا |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | West Azerbaijan |
| Subdivision Type2: | County |
| Subdivision Name2: | Urmia |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Nazlu |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Nazluchay |
| Population As Of: | 2006 |
| Population Total: | 897 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.665°N 44.9297°W |
Qaleh-ye Esmail Aqa (Persian: قلعه اسماعيل اقا, also Romanized as Qal‘eh-ye Esmā‘īl Āqā and Qal‘eh-ye Esmā‘īlāqā; also known as Esmā‘īlāqā Qal‘ehsī) is a village in Nazluchay Rural District, Nazlu District, Urmia County, West Azerbaijan Province, Iran. At the 2006 census, its population was 897, in 140 families.