| Marcinkowo | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ostróda |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Grunwald |
| Coordinates: | 53.5089°N 20.0361°W |
| Pushpin Map: | Poland |
| Population Total: | 240 |
Marcinkowo is a village in the administrative district of Gmina Grunwald, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland.[1]