Nadim al-Pachachi (18 March 1914 – 29 February 1976) was the Secretary-General of OPEC from January 1971 until December 1972. Born in Baghdad during the Ottoman Empire, he received a doctorate in petroleum engineering and worked in the Rumalia oil fields as a young man. He served as the Minister of Economy in the Iraqi government from 1952 until 1957. He was arrested during the 14 July Revolution in 1958.