The Baiu Mountains are mountains in central Romania, a few kilometers south of Brașov. Within traditional Romanian classification the Baiu Mountains belong to the Curvature Carpathians. According to the geological divisions of the Carpathians, they belong to the Outer Eastern Carpathians. The Baiu Mountains run from the Azuga Valley in the North and to the Posada Gorges in the South, and from the Doftana Valley in the East to the Prahova Valley in the West. The mountains have an average elevation of 1110 m and a maximum height of 1923 m at Neamțu Peak, covering an area of about 300 km2. The Baiu Mountains lie immediately south of the Gârbova Mountains, a long north-south ridge.