Chilas () is a historical city of Diamer District located in Gilgit-Baltistan, Pakistan, on the Indus River. It is part of the Silk Road connected by the Karakoram Highway and N-90 National Highway, which link it to Islamabad and Peshawar in the southwest, via Hazara and Malakand Divisions of Khyber Pakhtunkhwa. In the north, Chilas is connected to the Chinese cities of Tashkurgan and Kashgar in Xinjiang, via Gilgit, Aliabad, Sust, and the Khunjerab Pass.