Mierzęcin may refer to the following places: Mierzęcin, Lubusz Voivodeship (west Poland) Mierzęcin, Pułtusk County in Masovian Voivodeship (east-central Poland) Mierzęcin, Sierpc County in Masovian Voivodeship (east-central Poland) Mierzęcin, Gmina Pawłowiczki in Opole Voivodeship (south-west Poland) Mierzęcin, Gmina Polska Cerekiew in Opole Voivodeship (south-west Poland) Mierzęcin, West Pomeranian Voivodeship (north-west Poland)