| Ostrów Południowy | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Sokółka |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Krynki |
| Coordinates: | 53.25°N 65°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
Ostrów Południowy is a village in the administrative district of Gmina Krynki, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus.[1] It lies approximately 6km (04miles) west of Krynki, 220NaN0 south-east of Sokółka, and 390NaN0 north-east of the regional capital Białystok.