Karczewiec
Karczewiec is a Polish place name:
- Karczewiec (Sorkwity) , Powiat Mrągowski, Warmian-Masurian Voivodeship, until 1945: Neusorge , Sensburg District, East Prussia
 - Karczewiec (Wierzbno) , Powiat Węgrowski, Masovian Voivodeship
 
Karczewiec is a Polish place name: