| Kościelna Jania | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Pomeranian |
| Subdivision Type2: | County |
| Subdivision Name2: | Starogard |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Smętowo Graniczne |
| Coordinates: | 53.7525°N 18.6028°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | right |
| Population As Of: | 2023 |
| Population Total: | 163 |
Kościelna Jania is a village in the administrative district of Gmina Smętowo Graniczne, within Starogard County, Pomeranian Voivodeship, in northern Poland.[1] It lies approximately 6km (04miles) west of Smętowo Graniczne, 250NaN0 south of Starogard Gdański, and 690NaN0 south of the regional capital Gdańsk.
For details of the history of the region, see History of Pomerania.