| Ciemno-Gnojna | |
|---|---|
| Village | |
| Country |
|
| Voivodeship | Masovian |
| County | Żyrardów |
| Gmina | Mszczonów |
Ciemno-Gnojna [ˈt͡ɕemnɔ ˈɡnɔi̯na] is a village in the administrative district of Gmina Mszczonów, within Żyrardów County, Masovian Voivodeship, in east-central Poland.
Coordinates: 51°58′05″N 20°34′09″E / 51.96806°N 20.56917°E