Belukha Mountain (/bəˈluːxə/; Russian: Белуха, IPA: [bʲɪˈɫuxəl], also known as Beluga Mountain, Icemount Peak (Kazakh: Мұзтау Шыңы / Mūztau Şyñy [mʊsˈtɑw ʃəˈŋə]), or The Three Peaks (Altay: Ӱч-Сӱмер / Üç-Sümer [ʏc͡ç sʏˈmer]), is the highest peak of the Altai Mountains in Russia and the highest of the South Siberian Mountains system. It is part of the Golden Mountains of Altai World Heritage Site.

Since 2008, one is required to apply for a special border zone permit in order to be allowed into the area (if travelling independently without using an agency). Foreigners should apply for the permit to their regional FSB border guard office two months before the planned date.

Located in the Altai Republic, Belukha is a three-peaked mountain massif that rises along the border of Russia and Kazakhstan, just a few dozen miles north of the point where this border meets with the border of China. There are several small glaciers on the mountain, including Belukha Glacier. Of the two peaks, the eastern peak (4,506 m, 14,784 ft.) is higher than the western peak (4,440 m, 14,567 ft.).

Belukha was first climbed in 1914 by the Tronov brothers. Most ascents of the eastern peak follow the same southern route as that taken in the first ascent. Though the Altai is lower in elevation than other Asian mountain groups, it is very remote, and much time and planning are required for its approach.

In the summer of 2001, a team of scientists traveled to the remote Belukha Glacier to assess the feasibility of extracting ice cores at the site. Research was carried out from 2001 to 2003: both shallow cores and cores to bedrock were extracted and analyzed (Olivier and others, 2003; Fujita and others, 2004). Based on tritium dating techniques, the deeper cores may contain as much as 3,000–5,000 years of climatic and environmental records. A Swiss-Russian team also studied the glacier.

• List of highest points of Russian federal subjects
• List of Altai mountains
• List of Ultras of Central Asia
• List of glaciers of Russia
• Siberia portal

 This article incorporates public domain material from websites or documents of the United States Geological Survey.