The Kyashar (also known as Thangnaktse and Peak 43) is a mountain peak (6769 m height) in the Khumbu region in Nepal, east of Namche Bazar in the so-called Hinku Himal.

[3] North of Kyashar lies the Kangtega (6783 m), southwest the Kusum Kangguru (6367 m), and the Mera Peak (6476 m) is 6.77 km southeast.

[4] The mountain also is sometimes called Thangnaktse, and at a local level it is sometimes called Charpate, which means "square", describing the shape of mountain peak.

[5] The Kyashar was first climbed on 18 October 2003 by Bruce Normand, Andreas Frank, and Sam Broderick.

[7] On November 11, 2012, the Japanese Yasuhiro Hanatani, Hiroyoshi Manome and Tatsuya Aoki made the first ascent of the mountain over the south pillar (South Pillar), the so-called NIMA route (2400m, ED +, 5.10a, M5), in alpine style, for which they were awarded the Piolet d'Or.