| Mierzyn | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Nowe Miasto |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Biskupiec |
| Pushpin Map: | Poland |
| Coordinates: | 53.4667°N 35°W |
Mierzyn is a village in the administrative district of Gmina Biskupiec, within Nowe Miasto County, Warmian-Masurian Voivodeship, in northern Poland.[1] It lies approximately 7km (04miles) south-west of Biskupiec, 220NaN0 west of Nowe Miasto Lubawskie, and 890NaN0 south-west of the regional capital Olsztyn.