The Sign is a 1993 album by Swedish pop group Ace of Base, released as the band's debut album in North America and some Latin American countries by Arista Records. The Sign contains songs from Ace of Base's debut album, Happy Nation (1992) and the new songs "Don't Turn Around", "The Sign", and "Living in Danger" as well as revised versions of "Voulez-Vous Danser" and "Waiting for Magic".

The Sign is listed among the Top 100 Best-selling Albums of All Time by the Recording Industry Association of America (RIAA), with sales in excess of 21 million copies. The album itself earned Arista Records 42 million USD, and was nominated for Best Pop Album at the 1995 Grammy Awards. The Sign was ranked top three on the Billboard 200 chart for 26 consecutive weeks. The album, and the single of the same name, are the only single or album by a Swedish act to rank number one on Billboard's annual overall Year-End lists.