| Gmina Czarnia | |
| Other Name: | Czarnia Commune |
| Settlement Type: | Gmina |
| Pushpin Map: | Poland |
| Pushpin Map Caption: | Location within Poland |
| Coordinates: | 53.35°N 34°W |
| Coor Pinpoint: | Czarnia |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ostrołęka County |
| Seat: | Czarnia |
| Total Type: | Total |
| Area Total Km2: | 92.53 |
| Population Total: | 2620 |
| Population As Of: | 2006--> |
| Population Footnotes: | [1] |
| Population Total: | 2756 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
Gmina Czarnia is a rural gmina (administrative district) in Ostrołęka County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Czarnia, which lies approximately 40km (30miles) north-west of Ostrołęka and 1270NaN0 north of Warsaw.
The gmina covers an area of 92.53km2, and as of 2006 its total population is 2,620 (2,756 in 2011).
Gmina Czarnia contains the villages and settlements of Bandysie, Brzozowy Kąt, Cupel, Cyk, Czarnia, Długie, Michałowo, Rutkowo and Surowe.
Gmina Czarnia is bordered by the gminas of Baranowo, Chorzele, Myszyniec, Rozogi and Wielbark.