Mount Ophir, Volcanic mountain in West Sumatra, Indonesia.

Mount Ledang, also called Mount Ophir, is a 1,276 m peak in Tangkak District, Johor, Malaysia, and the highest point in Johor. Its summit lies beside the tripoint of the Tangkak, Jasin and Tampin districts, in Johor, Malacca and Negeri Sembilan. The mountain is the centrepiece of Gunung Ledang National Park.

The attested name Gunong Ledang was given by Javanese speakers during the Majapahit empire, from an Old Javanese word meaning 'show-off'. Chinese seafarers crossing the Straits of Malacca are said to have called it Kim Sua, 'golden mountain'. Malay tradition links the peak to the Legend of Gunung Ledang and to Hang Tuah, who with his companions trained in silat on the summit under the guru Adiputera.

The name Gunung Ledang is attested from the Majapahit era, when Javanese speakers used Old Javanese ledang, 'show-off', for a lofty mountain; Chinese seafarers were said to call it Kim Sua, 'golden mountain'. Malay folklore places a magical princess on the summit, who set Sultan Mahmud Shah of Malacca seven impossible conditions, among them bridges of gold and silver and a bowl of his son's blood. A pantun compares the mountain's height with the hopes of the heart.

The summit stands at 1,276 m (4,186 ft) beside the tripoint of Tangkak, Jasin and Tampin districts, in Johor, Malacca and Negeri Sembilan. The mountain forms the centrepiece of Gunung Ledang National Park in Tangkak District, Johor, and is the highest peak in Johor.

The mountain's attested name, Gunong Ledang, comes from Old Javanese ledang, 'show-off', given during the Majapahit period and meaning 'lofty mountain'. A traditional Malay pantun makes it proverbial: 'However high Mount Ledang, higher are the hopes of the heart.'