Chilas is a city in Pakistani-administered Gilgit–Baltistan in the disputed Kashmir region. It is the divisional capital of Diamer Division and is located on the Indus River. It is part of the Silk Road, connected by the Karakoram Highway and N-90 National Highway to Islamabad and Peshawar in the southwest, via Hazara and Malakand divisions of Khyber Pakhtunkhwa. To the north, Chilas connects to the cities of Tashkurgan and Kashgar in Xinjiang, China, via Gilgit, Aliabad, Sust, and the Khunjerab Pass.

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.