| Sasek Wielki | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Szczytno |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Szczytno |
| Coordinates: | 53.5167°N 75°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
Sasek Wielki (pronounced as /pl/; German: Materschobensee) is a village in the administrative district of Gmina Szczytno, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland.[1] It lies approximately 7km (04miles) south-west of Szczytno and 410NaN0 south-east of the regional capital Olsztyn.