Abdur Rahim Khan (25 October 1925 — 28 February 1990) secretly referred to as Shan'tay Khan by subordinates, was a Pakistani former fighter pilot, three-star rank air officer, and diplomat, who served as the fourth and last Commander-in-Chief of the Pakistan Air Force from 1969 to 1972. After his retirement, he served as Pakistan's Ambassador to Spain until his resignation in 1977.

Along with Chief of General Staff Gul Hassan Khan, Abdur Rahim Khan is seen by many as playing a major part in forcing President Yahya Khan to resign in the aftermath of the India–Pakistan war of 1971. This action was facilitated by a letter drafted by Brigadier F.B. Ali who threatened to stage a coup if power was not handed over to civilian rule after Pakistan had lost the war and its territory of East Pakistan. Abdur Rahim Khan subsequently dispatched an aircraft to Rome to bring Zulfikar Ali Bhutto back to Pakistan promising him protection should President Yahya carry out any wrong move. Air Marshal Khan facilitated his rise to power and is widely viewed as a kingmaker in Bhutto's ascent.

Abdur Rahim Khan was born in the neighbourhood of Morgah in Rawalpindi on 25 October 1925 or 25 July 1925, into a Punjabi Gujjar family. His father, Karam Baksh Azim was a Risaldar in the British Indian Army.

In 1943, Khan graduated from Nowrosjee Wadia College and joined the Royal Indian Air Force.

While attending the Imperial Defence College on a staff course as a Group Captain in 1962, Khan met Princess of Rampur Mehrunissa. Abdur Rahim Khan went to Air Marshal Asghar Khan and threatened to resign unless President Ayub Khan lifted the prohibition on Pakistanis marrying Indians. Asghar Khan, who met with President Ayub, said that Abdur Rahim Khan had a brilliant career ahead of him and argued that the PAF could not afford to lose such an officer. He also noted that Abdur Rahim had never been married before. After taking into consideration what Asghar Khan said, President Ayub Khan enacted a special law granting Mehrunissa a visa. Abdur Rahim Khan married Mehrunissa in March 1962.

This was her second marriage and she had two children from her previous marriage. Mehrunissa had two children with Khan, a daughter Mariam, born on 11 October 1964 and a son, Abid, born in 1965. Abid died in a car accident, sometime after his father's death.

Abdur Rahim Khan was commissioned into the Royal Indian Air Force on 5 June 1944, after initial flight training with various flying units such as Secunderabad, Jodhpur and Ambala. He was later assigned to No. 7 Sqn, based in Imphal, under squadron commander Pratap Chandra Lal. Khan took part in combat in World War II on the Burma front, fighting against the Japanese. He later received the Burma Star for his service.

Khan attended the 95th Course of the RAF Central Flying School from 1 August 1946 to 30 November 1946 and was promoted to Flying Officer.