Sinjajevina (Montenegrin: Сињајевина, pronounced [sǐɲajɛʋina]), also known as Sinjavina (pronounced [sǐɲaːʋina]), is a mountain in northern Montenegro.

The highest point of Sinjajevina is Jablanov vrh, which is 2,277 m (7,470 ft) high.

Mount Sinjajevina extends from southeast to northwest, between the town of Kolašin and the village of Njegovuđa, near Žabljak.

The high mountain plain averages 1,600 m (5,249 ft) in elevation, with only a few higher peaks.

The highest peaks of Mount Sinjajevina are: Mount Sinjajevina is home to two lakes, both in a process of natural extinction: