Nayanjot Lahiri  (born 3 March 1960) teaches archaeology in her capacity as Professor at the Department of History, University of Delhi. Educated at St. Stephen's College, Delhi,  and at the Department of History, University of Delhi, she taught at Hindu College from 1982 till 1993, and thereafter at the Department of History. She has served as Dean of Colleges at the University of Delhi from 2007 till 2010 and as Dean of International Relations from 2006 till 2007.

Nayanjot Lahiri has been  Member, Delhi Urban Art Commission (2007-2010). She  presently serves on the  Archival Advisory Board of the National Archives of India, the Executive Committee of the National Council of Education Research and Training (NCERT) and the Council of the Indian Council of Social Science Research (ICSSR). She was also  member of a committee set up by the Government of India in 2010 to analyze the impact of the Ancient Monuments and Archaeological Sites and Remains (Amendment and Validation) Ordinance, 2010 and to draft an alternative bill for Parliament. The bill became law in March 2010.

Lahiri's  many books include Pre-Ahom Assam(1991), The Archaeology of Indian Trade Routes (1992), The Decline and Fall of the Indus Civilization(2000) and Finding Forgotten Cities (2005). She is on the editorial board of American Anthropologist (U.S.A. ) and on the advisory editorial board of World Archaeology (U.K.).