Fallen is the debut studio album by American rock band Evanescence, released on March 4, 2003, by Wind-up Records. Co-founders singer and pianist Amy Lee and guitarist Ben Moody began writing and recording songs as Evanescence in 1994, and after releasing two EPs and a demo CD, they signed to Wind-up in January 2001. Several of the songs from their earlier independent releases feature on Fallen. The album was recorded between August and December 2002 in several studios in California. It is Evanescence's only studio album to feature Moody, who left the band in October 2003.

The album yielded four singles: "Bring Me to Life", "Going Under", "My Immortal", and "Everybody's Fool". "Bring Me to Life" and "My Immortal" charted in the top 10 of over 10 countries, including the US, UK and Australia. Fallen is Evanescence's most commercially successful album to date, selling 10 million copies in the US and over 17 million copies worldwide, making it the sixth best-selling album of the 21st century. It debuted at number seven on the Billboard 200 with 141,000 copies sold in its first week, peaking at number three in June 2003. The album topped the charts in more than 10 countries. It was certified Diamond by the Recording Industry Association of America (RIAA) in November 2022.

Fallen received generally positive reviews from music critics. Evanescence received five nominations at the 46th Grammy Awards: Album of the Year, Best Rock Album, Best Rock Song, Best Hard Rock Performance, and Best New Artist, winning the latter two. At the following year's ceremony, "My Immortal" was nominated for Best Pop Performance by a Duo or Group with Vocals. Evanescence embarked on their first headlining concert tour, the Fallen Tour, in 2003. A live album and concert DVD with behind the scenes footage was released in 2004, titled Anywhere but Home.