Dera Ghazi Khan, abbreviated as D.G. Khan, is a city in the southwestern part of Punjab, Pakistan. It is the 23th most populous city of Pakistan …Dera Ghazi Khan, abbreviated as D.G. Khan, is a city in the southwestern part of Punjab, Pakistan. It is the 23th most populous city of Pakistan as of 2023. Lying west of the Indus River, it is the headquarters of Dera Ghazi Khan District and Dera Ghazi Khan Division.