Fakir Aziz ud-Din (Punjabi: ਫ਼ਕੀਰ ਅਜ਼ੀਜ਼ ਉੱਦੀਨ/فکرعزیزادیں) was physician, linguist, diplomat, and foreign minister at the court of Mahārājā Raṇjīt Siṅgh He was a Muslim, one of many non-Sikhs, in Ranjit Singh's secular government of the Sikh Empire.He was the eldest son of Hakīm Ghulām Mohy ud-Dīn and had two brothers, Nūr ud-Dīn and Imām ud-Dīn. Both had senior military posts in the empire. He was apprenticed as a physician, and was originally known by the title Hakīm (physician).