| Sońsk | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Ciechanów |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Sońsk |
| Coordinates: | 52.7833°N 63°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 881 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Registration Plate: | WCI |
Sońsk is a village in Ciechanów County, Masovian Voivodeship, in north-central Poland. It is the seat of the gmina (administrative district) called Gmina Sońsk.[1] It lies approximately 11km (07miles) south-east of Ciechanów and 660NaN0 north of Warsaw.