Walter Zeev Laqueur (born 26 May 1921) is an American historian and political commentator.

He was born in Breslau, Germany (modern Wrocław, Poland), to a Jewish family. In 1938 Laqueur left Germany for the British Mandate of Palestine. His parents, who were unable to leave, became victims of the Holocaust. He lived in Palestine/Israel 1938-53 and since then in the UK and USA.

His main works deal with European history in the 19th and 20th century, especially Russian history, German history and Middle East history. He written on many topics from the German Youth Movement, Zionism, Israeli history, the cultural history of the Weimar Republic and Russia, Communism, the Holocaust, fascism and diplomatic history of the Cold War. His books have been translated into many languages and he was one of the founders of the study of political violence, guerrilla warfare and terrorism. His comments on international affairs have appeared in many American and European newspapers and periodicals.

An invaluable synthesis of the new body of evidence, released under glasnost , of Stalin's atrocities, this masterful biographical study is one of the few essential books on the Soviet ruler. The latest revelations show that the purges and the terror raged in all the Soviet republics, not just in Moscow and Leningrad. New light is shed on Stalin's role in liquidating the Red Army high command and officer corps, and in engineering the murder of loyal party boss Sergei Kirov. As eminent historian Laquer demonstrates, many Russians now view Stalin as a failure on his own terms, a mass murderer who sidetracked communism. Yet illusions persist in the U.S.S.R.: Trotsky is assigned much of the blame for the show trials and bloodbath, and Gorbachev has spoken reticently of the "many thousands" murdered by Stalin, the exterminator of some 20 million innocent victims.