Sitnica is a village in the administrative district of Gmina Dobiegniew, within Strzelce-Drezdenko County, Lubusz Voivodeship, in western Poland. It lies approximately 20 kilometres (12 mi) north-east of Dobiegniew, 37 km (23 mi) north-east of Strzelce Krajeńskie, and 62 km (39 mi) north-east of Gorzów Wielkopolski.
Before 1945 the area was part of Germany (see Territorial changes of Poland after World War II).
The village has a population of 60.