| Sędeń Mały | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Płock |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Łąck |
| Coordinates: | 52.5°N 53°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 150 |
Sędeń Mały is a village in the administrative district of Gmina Łąck, within Płock County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 6km (04miles) north-west of Łąck, 110NaN0 south-west of Płock, and 1030NaN0 west of Warsaw.