Ostrozub (Serbian Cyrillic: ÃÂÃÂÃÂÃÂþ÷ÃÂñ) is a mountain in southern Serbia, near the town of Crna Trava. It forms a continuous range with ÃÂemernik mountain. Its highest peak Ostrozupska ÃÂuka has an elevation of 1,546 meters above sea level.
The eponymous village () on the mountain is depopulated. According to the 2002 census, it had a population of 1.