Najam Aziz Sethi (Punjabi, Urdu: نجم عزیز سیٹھی; born 20 May 1948) is a Pakistani journalist, businessman and cricket administrator. He is the current chief executive officer (CEO) of Mitchell's. Previously, he served as the Chairman of the Pakistan Cricket Board (PCB) in three different tenures and as a caretaker Federal Minister of Pakistan and Chief Minister of Punjab one time. He is also the founder of The Friday Times and Vanguard Books.

As a journalist, he is a left-leaning political commentator who serves as the editor-in-chief of The Friday Times and formerly served as the Chairman of the Pakistan Super League. He has also served as the caretaker chief minister of Punjab during the 2013 election. He formerly used to host primetime current affairs show Aapas ki Baat on Geo News. He was briefly the President of AAP Media Network / Indus News.

Najam Sethi began his sociopolitical endeavours with the socialist movement working for the rights of Balochistan, leading to his arrest in 1975 before being discharged in 1978. He consequently left politics and established Vanguard Books, a progressive book publishing company.

In 1989, Sethi along with his wife Jugnu Mohsin launched an independent English weekly, The Friday Times. He was arrested by the second Nawaz Sharif government in 1999 on trumped-up charges of treason before being released by the Supreme Court of Pakistan. In 2002, he founded the Daily Times of Pakistan and became its editor until leaving in October 2009. He also served as the Pakistan correspondent of The Economist from 1990 to 2008.

Sethi won the 1999 International Press Freedom Award of the US-based Committee to Protect Journalists and the 2009 World Association of Newspapers' Golden Pen of Freedom Award and Courage in Journalism Award from Amnesty International. On 26 March 2013, his name was approved for the interim position of the chief minister of Punjab as a result of consensus between members of the selection committee comprising individuals from both the governing and the opposing political parties. He took the oath on 27 March 2013, and left the office after the May 2013 elections on 6 June 2013.

Sethi was born and raised in Lahore into a Punjabi family of the Khatri community. He graduated from Government College, Lahore (now Government College University), in 1967, earning the President's Gold Medal for achieving the highest academic distinction among more than 50,000 students of the University of the Punjab. He went on to complete a Master of Arts degree in Economics and Politics at the University of Cambridge in 1970. From 1971 to 1972, he was a PhD research student at Clare College, Cambridge. In 2011, Clare College named him Alumnus of the Year and awarded him an honorary Eric Lane Fellowship.

In 1984, he was detained for one month under "preventive detention" by the military regime of General Zia-ul-Haq, without being formally charged with any crime. The detention was widely believed to be linked to the publication of From Jinnah to Zia, a book released by Vanguard Books and authored by former Chief Justice of Pakistan, Mohammad Munir. In the book, Justice Munir reflected critically on his own role in validating Pakistan's first martial law in 1958, a precedent that many viewed as enabling General Zia's imposition of martial law in 1977.

According to Sethi, he first conceived of the idea for an independent Pakistani newspaper out of frustration: while briefly imprisoned in 1984 on trumped-up copyright charges, no newspapers had protested his arrest. The following year, he and Mohsin applied for a publishing licence under Mohsin's name, since Sethi was "too notorious an offender" to be use the application, Mohsin told him that she intended to publish "a social chit chat thing, you know, with lots of pictures of parties and weddings". It was finally approved in 1987, but Mohsin requested a one-year delay to avoid the first issue coming out during the dictatorship of General Zia ul Haq. The Friday Times' first issue appeared in May 1989.