| Ostasze | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Białystok |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Suraż |
| Pushpin Map: | Poland |
| Coordinates: | 52.9336°N 23.075°W |
Ostasze is a village in the administrative district of Gmina Suraż, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland.[1] It lies approximately 9km (06miles) east of Suraż and 220NaN0 south of the regional capital Białystok.