Masherbrum is a mountain located in the Ghanche District in the Gilgit Baltistan region of Pakistan. With an elevation of 7,821 metres, it ranks as the 22nd highest mountain globally and the 9th highest in Pakistan. It holds the distinction of being the first mapped peak in the Karakoram mountain range during the Great Trigonometrical Survey, leading to its K-number designation as "K1".

Gilgit-Baltistan, formerly known as the Northern Areas, is a region administered by Pakistan as an administrative territory and consists of the northern portion of the larger Kashmir region, which has been the subject of a dispute between India and Pakistan since 1947 and between India and China since 1959. It borders Azad Kashmir to the south, the province of Khyber Pakhtunkhwa to the west, the Wakhan Corridor of Afghanistan to the north, the Xinjiang region of China to the east and northeast, and the Indian-administered union territories of Jammu and Kashmir and Ladakh to the southeast.