| Mierzączka | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Garwolin |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Górzno |
| Pushpin Map: | Poland |
| Coordinates: | 51.8569°N 21.6758°W |
Mierzączka is a village in the administrative district of Gmina Górzno, within Garwolin County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 3km (02miles) north-west of Górzno, 60NaN0 south-east of Garwolin, and 620NaN0 south-east of Warsaw.