"Say Hello, Wave Goodbye" is a song from the album Non-Stop Erotic Cabaret by English synthpop duo Soft Cell that was released as a single in 1982 and reached number three on the UK Singles Chart. In 1991, the song was remixed by Julian Mendelsohn and released as Say Hello, Wave Goodbye '91 to promote the compilation album Memorabilia - The Singles, it reached number 38 on the UK Singles Chart. Marc Almond re-recorded his vocals for the new version.