| Olszewo | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Łomża |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Śniadowo |
| Pushpin Map: | Poland |
| Coordinates: | 53.0333°N 22.0297°W |
Olszewo is a village in the administrative district of Gmina Śniadowo, within Łomża County, Podlaskie Voivodeship, in north-eastern Poland.[1] It lies approximately 4km (02miles) north-east of Śniadowo, 140NaN0 south of Łomża, and 770NaN0 west of the regional capital Białystok.