
The former administrative units of Pakistan are states, provinces and territories which mainly existed between 1947 and 1975 when the current provinces and territories were established. The former units have no administrative function today but some remain as historical and cultural legacies. In some cases, the current provinces and territories correspond to the former units – for example the province of Punjab includes almost all the territory of the former province of West Punjab.

The Chief Commissioner's Province of Baluchistan was a province of British India, and later Pakistan, located in the northern parts of the modern Balochistan province.

The Baluchistan States Union or Balochistan States Union (BSU) was an administrative division of Pakistan that existed between 3 October 1952 and 14 October 1955 in the southwestern part of West Pakistan. It was formed by the four princely states of Kalat, Kharan, Las Bela and Makran with the capital at the town of Kalat. The area of the Union was roughly the south-western half of the modern province of Balochistan. The Union was separate from the Chief Commissioners Province of Baluchistan which comprised areas to the northeast of the Union. The Union did not include the enclave of Gwadar which was part of the Muscat and Oman. The four state rulers continued in office and retained autonomy.

East Pakistan was the eastern provincial wing of Pakistan between 1947 and 1971, covering the territory of the modern country Bangladesh. Its land borders were with India and Burma, with a coastline on the Bay of Bengal. East Pakistanis were popularly known as "Pakistani Bengalis"; to distinguish this region from the India's state West Bengal, East Pakistan was known as "Pakistani Bengal".

The Federal Capital Territory (FCT) around Karachi was the original capital territory of Pakistan. The FCT was created in 1948 from the city of Karachi and surrounding areas as the location for Pakistan's capital following its creation. The FCT was bordered by the province of Sindh to the northeast and the princely state of Las Bela to the northwest with the Arabian Sea to the south.

The Khanate of Kalat was a Baloch Khanate, that existed from 1666 to 1955 in the centre of the modern-day province of Balochistan, Pakistan. Prior to that they were subjects of Mughal emperor Akbar. Ahmedzai Khan ruled the state independently until 1839, when it became a self-governing state in a subsidiary alliance with British India. After the signature of the Treaty of Mastung by the Khan of Kalat and the Baloch Sardars in 1876, Kalat became part of the Baluchistan Agency. It was briefly independent from 12 August 1947 until 27 March 1948, when the Khan acceded his state to the new Dominion of Pakistan. It remained a princely state of Pakistan until 1955, when it was incorporated into the country.

The Malakand Agency was one of the Tribal Areas in the North West Frontier Province of Pakistan until 1970. It included the princely states of Chitral, Dir and Swat, and an area around the Malakand Pass known as the Malakand Protected Area. The largest city in the area was Mingora, while the three state capitals were Chitral, Dir, and Saidu Sharif.

The North-West Frontier Province was a province of British India and later of Pakistan. It was established in 1901 and known by this name until 2010. The area became Khyber Pakhtunkhwa province on 19 April 2010 when the Eighteenth Amendment was signed by President Asif Ali Zardari.

Sind was a province of British India from 1936 to 1947 and Pakistan from 1947 to 1955. Under the British, it encompassed the current territorial limits excluding the princely state of Khairpur. Its capital was Karachi. After Pakistan's creation, the province lost the city of Karachi, as it became the capital of the newly created country.

The State of Swat was a province ruled by local rulers known as the Akhunds as a princely state of the British Indian Empire up until 1947 when the Akhwand acceded to Pakistan. The state lay to the north of the modern Khyber Pakhtunkhwa Province and continued within its 1947 borders until 1969, when it was dissolved. The area it covered is now divided between the present-day districts of Swat, Dir, Buner and Shangla.

West Pakistan was one of the two exclaves created at the formation of the modern State of Pakistan following the 1947 Partition of India.

West Punjab was a province of Pakistan from 1947 to 1955. The province covered an area of 205,344 km2, including much of the current Punjab province and the Islamabad Capital Territory, but excluding the former princely state of Bahawalpur. The capital was the city of Lahore and the province was composed of four divisions. The province was bordered by the Indian states of East Punjab and Jammu and Kashmir to the east, the princely state of Bahawalpur to the south, the provinces of Balochistan and Sind to the southwest, Khyber-Pakhtunkhwa to the northwest, and Azad Kashmir to the northeast.