Mertinsdorf
Mertinsdorf is a German place name:
- Mertinsdorf , Osterode district, East Prussia, since 1945: Marcinkowo (Grunwald) , village in the powiat Ostródzki, Warmian-Masurian Voivodeship, Poland
- Mertinsdorf , Sensburg district, East Prussia, since 1945: Marcinkowo (Mrągowo) , village in the powiat Mrągowski, Warmian-Masurian Voivodeship, Poland
See also: Alt Mertinsdorf , Mertensdorf