| Kostulin | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Kuyavian-Pomeranian |
| Subdivision Type2: | County |
| Subdivision Name2: | Włocławek |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Lubień Kujawski |
| Coordinates: | 52.3522°N 19.1703°W |
| Pushpin Map: | Poland |
| Population Total: | 120 |
Kostulin is a village in the administrative district of Gmina Lubień Kujawski, within Włocławek County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.[1] It lies approximately 6km (04miles) south of Lubień Kujawski, 350NaN0 south of Włocławek, and 850NaN0 south-east of Toruń.