| Seroczyn | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ostrołęka |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Czerwin |
| Pushpin Map: | Poland |
| Coordinates: | 52.9333°N 71°W |
Seroczyn is a village in the administrative district of Gmina Czerwin, within Ostrołęka County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 6km (04miles) east of Czerwin, 240NaN0 south-east of Ostrołęka, and 980NaN0 north-east of Warsaw.