| Ostaszewo-Włuski | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Pułtusk |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Gzy |
| Coordinates: | 52.7492°N 20.8003°W |
| Pushpin Map: | Poland |
Ostaszewo-Włuski is a village in the administrative district of Gmina Gzy, within Pułtusk County, Masovian Voivodeship, in east-central Poland.[1]