| Official Name: | Qasr-e Yaqub |
| Native Name: | قصريعقوب |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Khorrambid |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Khorrami |
| Population As Of: | 2006 |
| Population Total: | 334 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.5119°N 53.1283°W |
Qasr-e Yaqub (Persian: قصريعقوب, also romanized as Qaşr-e Ya‘qūb and Qasr-i-Yā‘qūb; also known as Qaşr-e Qal‘eh Ya‘qūb) is a village in Khorrami Rural District, in the Central District of Khorrambid County, Fars Province, Iran. At the 2006 census, its population was 334, in 83 families.