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.
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.