| Official Name: | Katak-e Sofla |
| Native Name: | كتك سفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chaharmahal and Bakhtiari |
| Subdivision Type2: | County |
| Subdivision Name2: | Borujen |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Gandoman |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Gandoman |
| Population As Of: | 2006 |
| Population Total: | 37 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 31.8578°N 51.1033°W |
Katak-e Sofla (Persian: كتك سفلي, also Romanized as Katak-e Soflá; also known as Katak-e Pā’īn) is a village in Gandoman Rural District, Gandoman District, Borujen County, Chaharmahal and Bakhtiari Province, Iran. At the 2006 census, its population was 37, in 9 families. The village is populated by Lurs.[1]