The Brottby Concert () was a Neo-Nazi rock concert. It was held at the Yesterday dancing venue in Brottby, Sweden on Saturday evening, 3 January 1998. Participating bands and audience came from several countries. Swedish police stroke against the concert. Several persons suspected for hate speech were arrested. Totally the police arrested circa 250 personer people. Participangs from other countries, for example the USA said during the trial that they didn't knew doing a nazi salute was considered hate speech in Sweden. The concert and the following trials were brought major attention by Swedish newspapers.