| Mierniki | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ciechanów |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Gołymin-Ośrodek |
| Pushpin Map: | Poland |
| Coordinates: | 52.8667°N 72°W |
Mierniki is a village in the administrative district of Gmina Gołymin-Ośrodek, within Ciechanów County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 7km (04miles) north of Gołymin-Ośrodek, 160NaN0 east of Ciechanów, and 730NaN0 north of Warsaw.