Osovnitsa is a village in Ivanava Raion, in Brest Region, Belarus. Osovnitsa lies at 147 m above sea level. It has 159 inhabitants. The nearest city is Pinsk, 36 km to the east. Among the landmarks around are Orthodox church of the Transfiguration of Jesus Christ in Motal (3.0 km), Holy Trinity Orthodox church in Dastojeva (6.7 km) and Saint Nicholas church in Družylavičy (8.3 km).

Also written Асаўніца.