| Sierżnia | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Łódź |
| Subdivision Type2: | County |
| Subdivision Name2: | Zgierz |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Stryków |
| Pushpin Map: | Poland |
| Coordinates: | 51.8653°N 19.6511°W |
Sierżnia is a village in the administrative district of Gmina Stryków, within Zgierz County, Łódź Voivodeship, in central Poland.[1] It lies approximately 5km (03miles) south-east of Stryków, 170NaN0 east of Zgierz, and 160NaN0 north-east of the regional capital Łódź.