| Giełczyn | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Mława |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Strzegowo |
| Pushpin Map: | Poland |
| Coordinates: | 52.9167°N 33°W |
Giełczyn is a village in the administrative district of Gmina Strzegowo, within Mława County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 5km (03miles) west of Strzegowo, 250NaN0 south-west of Mława, and 950NaN0 north-west of Warsaw.