The chapter explores how the concept of antisemitism was used in the Norwegian public sphere in the post-Holocaust period. Was antisemitism regarded as a problem for Norwegian society and accordingly scandalised? How were the boundaries of expression (of what can be said about Jews) defined and negotiated: by consensus or conflict? Analysing two central debates that took place in 1960 and 1983 respectively, the chapter traces a fading consensus about the definition of antisemitism. In 1960, the Norwegian public unanimously condemned any flare-up of Nazi ideology, race hatred and antisemitism, and did not allow any space for expressions of neo-Nazism and Holocaust denial. In 1983, by contrast, there was no consensus in the Norwegian public about the question of whether the radical condemnation of Israel (“Zionism is racism”) that had developed in the Norwegian radical Left after 1967 should be seen as illegitimate antisemitism, or as legitimate criticism protected by the freedom of speech.