Langtang Ri, Mountain summit in Rasuwa, China.

Langtang Ri is a mountain peak in the Langtang Himal range standing at about 7,205 meters (23,638 feet). The slopes are steep and rocky, with permanent snow and ice covering the higher elevations.

Langtang Ri was first climbed on 10 October 1981 by a Japanese-Nepalese expedition led by Hideyuki Uematsu, which had set up base camp on 20 September 1981. Noboru Yamada, Makihiro Wakao, Soichi Nasu and Ang Rinji Sherpa reached the summit via the south ridge. The climb is documented in Doug Scott and Alex MacIntyre's 1984 book The Shishapangma Expedition.

The peak's Nepali name, लाङटाङ री, appears in the 1981 expedition accounts, and the mountain lies on the Nepal–Tibet border, so climbers pass between Nepali and Tibetan cultural worlds. The first ascent team was Japanese, led by Hideyuki Uematsu, with Ang Rinji Sherpa reaching the summit alongside three Japanese climbers on 10 October 1981.

Climbers access the peak through base camps and require specialized mountaineering equipment and multiple rest days for acclimatization. Good physical fitness and high-altitude climbing experience are essential for a safe ascent.

The first ascent, on 10 October 1981, went via the south ridge: a Japanese-Nepalese expedition led by Hideyuki Uematsu, with Noboru Yamada, Makihiro Wakao, Soichi Nasu and Ang Rinji Sherpa reaching the top. Base camp was set on 20 September 1981, and Camp 2 was pitched on 30 September right after a severe storm.