He was born in Buenos Aires in 1975. He is a history professor at the New School for Social Research and at Eugene Lang College in New York City. He is currently Director of the Department of History.
He studied History at the University of Buenos Aires and obtained his doctorate in history at Cornell University in 2006. He has published articles in Latin America, Europe and the United States in various specialized magazines and collective volumes on fascism, the Holocaust, the history of the Jews in Latin America and Europe, comparative genocide, the Cold War and the relationship between history and political theory.
Among his books are: The Germans, the Holocaust and collective guilt. The Goldhagen debate (Eudeba: 1999); Fascism, liturgy and imagination. The myth of General Uriburu and nationalist Argentina (FCE: 2002); The Holocaust Canon (Prometheus: 2010), Trans-Atlantic Fascism (Duke University Press, 2010); The Ideological Origins of the Dirty War (Oxford University Press, 2014) and The myth of fascism: from Freud to Borges (Intellectual Capital, 2015).
Finchelstein has written opinion columns for various media such as The New York Times, The Guardian, Clarín, La Nación, Folha de S.Paulo, Mediapart and Reuters.