Liaqat Ali Khan - 1947- 1951 (4 yrs, 2 mos)
He was the first Prime Minister of Pakistan after Mohammad Ali Jinnah’s demise in 1948.
Source: https://na.gov.pk/
Khawaja Nazimuddin - 1951- 1953 (1 yr, 4 mos)
He took over office after Liaqat Ali Khan’s assassination and was overthrown by the Governor-General Ghulam Mohammad.
Mohammad Ali Bogra - 1953-1955 (2 yrs, 3 mos)
He was recalled from his United Nations service for Pakistan to replace Khawaja Nazimuddin as the Prime Minister after approval by Governor-General Ghulam Muhammad.
Chaudhry Mohammad Ali - 1955-1956 (1 yr, 1 mo)
He is famous for promulgating the first set of the Constitution of Pakistan.
Huseyn Shaheed Suhrawardy - 1956-1957 (1 yr, 1 mo)
He is often remembered as the mentor of Bangladesh’s founding leader Sheikh Mujibur Rahman or Bangabandhu.
Ibrahim Isamil Chaundrigar - 1957 (28 days)
He served the shortest tenure as the Prime Minister of Pakistan after Nurul Amin. Chaundrigar’s tenure lasted for 55 days.
Malik Feroz Khan Noon - 1957-1958 (9 mos, 28 days)
He served as the seventh Prime Minister of Pakistan from December 16,1957 until being removed with the imposition of the martial law.
Nurul Amin - 1971 (13 days)
He served the shortest term in office at 13 days as martial law was imposed doon after Dhaka’s fall in 1971.
Zulfiqar Ali Bhutto - 1973-1977 (3 yrs, 10 mos)
He took over reigns as the Prime Minister in 1973 and is also known as the architect of the Pakistani constitution of 1973.
Muhammad Khan Junejo - 1985-1988 (3 yrs, 2 mos)
He was the Prime Minister of Pakistan during General Zia-ul-Haq’s regime till 1988.
Benazir Bhutto- 1988-1990 (3 yrs, 8 mos) and 1993-1996 (3 yrs, 17 days)
The first woman Prime Minister of Pakistan, she held office for two terms – 1988-1990 and 1993-1996.
Nawaz Sharif - 1990-1993 (2 yrs, 5 mos), 1997-1999 (2yrs, 5 mos) and 2012-2017 (4 yrs, 1 mo)
Brought into political life by General Zia-ul-Haq, Sharif held office for three terms—1990-1993, 1997-1999 and 2012-17.
Zafarullah Khan Jamali - 2002-2004 (1 yr, 7 mos)
He was the Prime Minister of Pakistan from 2002-2004, i.e., during General Pervez Musharraf’s reign.
Chaudhry Shujaat Hussain - 2004 (1 mo, 28 days)
He is among those Prime Ministers who had a very short tenure. His term lasted 1 month and 28 days.
Shaukat Aziz - 2004-2007 (3 yrs, 2 mos)
He was the Prime Minister of Pakistan from 2004-07 after 5 years as the country’s finance minister and 30 years of experience at Citibank.
Syed Yousaf Raza Gilani - 2008-2012 (4 yrs, 1 mo)
He became the Prime Minister of Pakistan in 2008, which was also the year of Pervez Musharraf’s fall from the political echelons.
Raja Pervaiz Ashraf - 2012-2013 (9 mos, 2 days)
He remained in office from 2012-14 and currently serves as the Vice President of the Pakistan Democratic Movement (PDM), anti-establishment coalition of political parties.
Shahid Khaqan Abbasi - 2017-18 (10 mos)
His tenure lasted for 10 months and he is currently the secretary-general of the PDM.
Imran Khan - 2018-till date (3 yrs, 8 mos)
The current Prime Minister of Pakistan, he faces the challenge of a no-confidence motion and his tenure has been marred with inflation getting out of hand and many policy failures.
Source: https://na.gov.pk/