| Janowiec Kościelny | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Nidzica |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Janowiec Kościelny |
| Coordinates: | 53.2903°N 20.5228°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 360 |
Janowiec Kościelny is a village in Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It is the seat of the gmina (administrative district) called Gmina Janowiec Kościelny.[1] It lies approximately 10km (10miles) south-east of Nidzica and 550NaN0 south of the regional capital Olsztyn.