| Tończa-Janówki | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Węgrów |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Liw |
| Coordinates: | 52.4614°N 21.9814°W |
| Pushpin Map: | Poland |
| Timezone1: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Iso Code: | POL |
| Postal Code Type: | Postal code |
| Postal Code: | 07-100 |
| Registration Plate: | WWE |
| Area Code: | 25 |
Tończa-Janówki is a village in the administrative district of Gmina Liw, within Węgrów County, Masovian Voivodeship, in east-central Poland.[1]