| Trześcianka | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Hajnówka |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Narew |
| Coordinates: | 52.9333°N 50°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
Trześcianka is a village in the administrative district of Gmina Narew, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland.[1] It lies approximately 6km (04miles) north-west of Narew, 240NaN0 north of Hajnówka, and 280NaN0 south-east of the regional capital Białystok.
Trześcianka is mostly inhabited by Orthodox Belarusians.