Hajj Abdul Rahman Mohammed Arif Aljumaily (Arabic عبد الرحمن محمد عارف الجميلي`Abd al-Raḥmān `Ārif) (1916 – August 24, 2007) was the third President of Iraq from April 16, 1966 to July 17, 1968.

He was a career soldier, and supported the military coup in 1958 that overthrew the monarchy. He also supported the coup that brought his brother, Abdul Salam Arif, to power in 1963. His brother appointed him head of the army following the coup, and when the younger Arif died in a helicopter crash in April 1966 (a probable act of sabotage), Prime Minister Abdul Rahman al-Bazzaz became acting president; three days later, al-Bazzaz was chosen to become president, then al-Bazzaz immediately relinquished the presidency to Abdul Rahman Arif. The transfer of power possibly occurred because the Iraqi military thought that Abdul Salam should be succeeded by his weak and easier to manipulate brother instead. Arif was appointed president by the Iraqi Revolutionary Command Council. He continued his brother's policies, but with a more nationalistic profile.

Abdur Rahman (Arabic: عبد الرحمن‎ or occasionally عبد الرحمان) is a male Muslim given name, and in modern usage, surname. It is built from the Arabic words Abd, al- and Rahman. The name means "servant of the most gracious", ar-Rahman being one of the names of God in the Qur'an, which give rise to the Muslim theophoric names.

The letter a of the al- is unstressed, and can be transliterated by almost any vowel, often by u. Because the letter r is a sun letter, the letter l of the al- is assimilated to it. Thus although the name is written in Arabic with letters corresponding to Abd al-Rahman, the usual pronunciation corresponds to Abd ar-Rahman. Alternative transliterations include ‘Abd ar-Rahman, Abdul Rahman, Abdur Rehman, Abdul Rehman, Abidur Rahman, and others, all subject to variant spacing and hyphenation. Certain transliterations tend to be associated with certain areas, for example, Abdirahman in Somalia, and Abderrahmane in French-speaking North Africa.

The name may refer to:

For footballers, see List of footballers called Abdur Rahman. For cricketers, see Abdur Rehman (cricketer)