Shireen Mehrunnisa Mazari (Urdu: شیرین مہرالنساء مزاری) is a Pakistani politician who had been a member of the National Assembly of Pakistan and serves as a chief whip for Pakistan Tehreek-e-Insaf.
Mazari studied at the London School of Economics and later received her PhD from Columbia University in political science. Mazari joined Quaid-e-Azam University as an associate professor and went on to head the university's strategic studies department. In 2002, Mazari became the head of the government-funded Institute of Strategic Studies and remained until she was sacked in 2008. In 2009, Mazari became the editor of The Nation.
Mazari joined the Pakistan Tehreek-e-Insaf in 2008 and was elected to the National Assembly in 2013 from Punjab