| Sebastianowo | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Greater Poland |
| Subdivision Type2: | County |
| Subdivision Name2: | Śrem |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Książ Wielkopolski |
| Coordinates: | 52.0333°N 32°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | right |
| Elevation Min M: | 90 |
| Elevation Max M: | 100 |
| Population Total: | 131 |
Sebastianowo is a village in the administrative district of Gmina Książ Wielkopolski, within Śrem County, Greater Poland Voivodeship, in west-central Poland.[1] It lies approximately 4km (02miles) south of Książ Wielkopolski, 170NaN0 east of Śrem, and 470NaN0 south-east of the regional capital Poznań.