Planinitsa (Bulgarian: Планиница, also transliterated Planinica) is a village in western Bulgaria.

The name derives from the Bulgarian word Planina, which means mountain + the Slavic suffix -itsa.

Late antique and medieval fortress in Gradishte, 1.16 km west of the village of Planinitsa, on the eastern slope of Cherna Gora.

The fortress was built in late antiquity on an area of about 3 acres.

In the past, part of the fortress walls and the separate rooms to them were preserved.