| Ostrożeń Trzeci | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Garwolin |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Żelechów |
| Coordinates: | 51.7703°N 21.7917°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
Ostrożeń Trzeci is a village in the administrative district of Gmina Żelechów, within Garwolin County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 9km (06miles) south-west of Żelechów, 190NaN0 south-east of Garwolin, and 740NaN0 south-east of Warsaw.