| Gmina Sanniki | |
| Other Name: | Sanniki Commune |
| Settlement Type: | Gmina |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Gostynin |
| Area Total Km2: | 94.57 |
| Population Total: | 6542 |
| Population As Of: | 2006 |
| Population Density Km2: | auto |
| Coor Pinpoint: | Sanniki |
| Coordinates: | 52.3339°N 19.8658°W |
| Seat: | Sanniki |
Gmina Sanniki is a rural gmina (administrative district) in Gostynin County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Sanniki, which lies approximately 29km (18miles) east of Gostynin and 790NaN0 west of Warsaw.
The gmina covers an area of 94.57km2, and as of 2006 its total population is 6,542.
Gmina Sanniki contains the villages and settlements of Aleksandrów, Brzezia, Brzeziny, Czyżew, Działy, Krubin, Lasek, Lubików, Lwówek, Mocarzewo, Nowy Barcik, Osmolin, Osmólsk Górny, Sanniki, Sielce, Staropol, Stary Barcik, Szkarada, Wólka Niska and Wólka Wysoka.
Gmina Sanniki is bordered by the gminas of Gąbin, Iłów, Kiernozia, Pacyna and Słubice.