Peter Beinart is an American liberal columnist, journalist and political commentator. Former editor of the The New Republic, he has also written for Time, The Atlantic and The NY Review of Books, among others.

Beinart was born in Cambridge, Massachusetts. He studied history and political science at Yale where he was a member of the Yale Political Union and graduated in 1993. He was a Rhodes Scholar at University College, Oxford, where he earned an MPhil in International Relations in 1995.

Beinart was managing editor at The New Republic 1995-1997, then senior editor until 1999 and the magazine's editor from 1999-2006. From 2007-2009 he was a Senior Fellow at the Council on Foreign Relations. He is now Associated Professor of Journalism and POlitical Science at the City University of New York. He has written for Time, The New York Tomes, and The New York Review of Books among others. 

Beinart is the author of the 2006 book 'The Good Fight: Why Liberals -- and Only Liberals -- Can Win the War on Terror and Make America Great Again'. His second book is 'The Icarus Syndrome: A History of American Hubris' (2010) and looks at the events of World War I, the Vietnam War and the Iraq War. 'The Crisis of Zionism' (2012) is his third book, describing Beinarts' views on the Israeli-Palestinian conflict. Beinart's forth and most recent book, 'Being Jewish After the Destruction of Gaza: A Reckoning' was released in January 2025.