| Olszewo-Bołąki | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Mława |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Stupsk |
| Pushpin Map: | Poland |
| Coordinates: | 53.0333°N 50°W |
Olszewo-Bołąki is a village in the administrative district of Gmina Stupsk, within Mława County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 4km (02miles) east of Stupsk, 130NaN0 south-east of Mława, and 970NaN0 north of Warsaw.