| Janczewice | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Piaseczno |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Lesznowola |
| Coordinates: | 52.1106°N 20.9317°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
Janczewice is a village in the administrative district of Gmina Lesznowola, within Piaseczno County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 3km (02miles) north of Lesznowola, 80NaN0 north-west of Piaseczno, and 130NaN0 south of Warsaw.