Gasherbrum III is the 15th highest mountain in the world and 6th highest in Pakistan. It is situated between Gasherbrum II and IV of the Gasherbrum massif. It was the highest unclimbed peak up to 1974.

Gasherbrum is a remote group of peaks located at the northeastern end of the Baltoro Glacier in the Karakoram range of the Himalaya. The massif contains three of the world's 8,000 metre peaks (if one includes Broad Peak). Gasherbrum is often claimed to mean "Shining Wall", presumably a reference to the highly visible face of Gasherbrum IV; but in fact it comes from "rgasha" (beautiful) + "brum" (mountain) in Balti, hence it actually means "beautiful mountain."

Gasherbrum III was first climbed in 1975 by Wanda Rutkiewicz, Alison Chadwick-Onyszkiewicz, Janusz Onyszkiewicz and Krystof Zdzitowiecki of a Polish expedition.