Lenin Peak or Ibn Sina (Avicenna) Peak is a mountain in the Trans-Alay Range of the Pamir Mountains, in the Gorno-Badakhshan and Osh regions on the Kyrgyzstan–Tajikistan border. At 7,134 metres (23,406 ft), it is the second-highest point of both countries (after Ismoil Somoni Peak in Tajikistan and Jengish Chokusu in Kyrgyzstan) and the tallest mountain of the Trans-Alay Range. It is considered one of the least technical 7,000 m peaks in the world to climb and has the most ascents of any peak over 7,000 metres, with hundreds of climbers attempting it annually.
Lenin Peak was thought to be the highest point in the Pamirs in Tajikistan until 1933, when Ismoil Somoni Peak (known as Stalin Peak at the time) was climbed and found to be more than 300 metres higher. Two mountains in the Pamirs in China, Kongur Tagh (7,649 m) and Muztagh Ata (7,546 m), are higher than the Tajik summits.