| Official Name: | Dahaneh-ye Sar-e Sefidrud-e Kohneh |
| Native Name: | دهنه سرسپيدرودكهنه |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Astaneh-ye Ashrafiyeh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Kiashahr |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Dehgah |
| Population As Of: | 2006 |
| Population Total: | 638 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.3817°N 50.1714°W |
Dahaneh-ye Sar-e Sefidrud-e Kohneh (Persian: دهنه سرسپيدرودكهنه, also Romanized as Dahaneh-ye Sar-e Sefīdrūd-e Kohneh; also known as Dahaneh Sar and Dahaneh-ye Sar-e Sefīdrūd) is a village in Dehgah Rural District, Kiashahr District, Astaneh-ye Ashrafiyeh County, Gilan Province, Iran. At the 2006 census, its population was 638, in 179 families.